This is actually a comment I made in response to some thoughts on anti-theists and atheist and their relation.  I felt like I would clear up a few areas as I see them.  Feel free to add in other insights you've noticed on the matter as well.  If some of the writing seems semi-off topic that is due to it's original location.  A few topics brought up at the other comment section was the usual barrage of @shinyblurry 's posting in response to a video that was targeted against religion--fair reason to join in as I see it; although as I point out he did bring into play some very questionable physics hypotheticals.  One being that the Milky way is at the center of the Universe do to information provided by "quantisized" red-shifts.  Then of course @GeeSussFreeK 's anti-theism comments directed towards atheists that have decided to put religion in their crosshairs.

Original Section:  Penn Jillete Guide to Atheist For the 2012 Election

Thought I'd throw in one more bit about the anti-theism comments above, like @GeeSussFreeK 's.

I wholly agree that I detest these once atheists that have literally taken what is normally a balanced "naught" position as to God(s) existence barring evidence and instead these anti-theists ditch that stance and deem that not only is all religion a wash, but any God is as well. They're very aggressive  in protection of their stance (or can be).  Some have chosen this view due to their former membership to these religions.  Unfortunately, they CAN be very pro-active, provacative, and vitriolic/acidic in nature.  Their current "leaders", one like Christopher Hitchins, tend to do many talks, interviews, books, or other media.  What concerns some is that they call themselves atheists still, giving the rest of us a bad rap, or a connatation that we dislike all religions, which simply isn't true.  It's this association that can cause one to be misread to be the same as the other that makes more people angry at them than simply the religous.

(-this section was edited for clarification and a hyperbole mistake on my part that can still be read at the original at the original comment thread in the above hyperlink...)

Some of them though are just plain tired of the charades they have had to play with men they worked with, people they once respected--but, those same people might as well put their workmate, friend, and neighbors into brutal conditions for a simple principle held: atheism. It's happened before, not as ruthless as it may have been in the earlier centuries, but black listing someone in a community can happen. I've seen it happen innumerable times first hand! I can't blame some for their outrage and pointed damnation they hold for others; it was created by those that may complain that the volume and acidity of their words may be too strong--or too true.

Of course religion has it's share of idiots as well. They are almost always the fundamentalists, like the Westboro clan. Papa (George H. W.) Bush once said that atheists should have no rights in the U.S.--if he had his way--they would not be citizens nor would they be patriots. Because, this is a nation "under God"--atleast after that was added. Maybe Papa Bush didn't know that historical part. Religion also has a grand stand in politics and the media. That is yet another thing that must be remembered is that when an anti-theist does speak it will outrage the religious; but, atheists, anti-theists (even Jews, Muslims, Hindu, Buddhism, etc...), endure the endless exposure and should be expected to remain quiet... Fox News is the epitome of which I speak as it is nothing more than a pulpit for the rich, white, Christian, American, white collar worker.

But, there is one more consideration that HAS to be mentioned. As this point gets me to go after religious people all the time. If this makes me anti-theist, because I voiced a concern over what is being said--then anti-theism is far more wide-spread and has NOTHING to do with atheism. I do think this may be a common misconception from just my general experiences on the messageboards, here and elsewhere.

The problem is: Science!

This is especially true for all of the fundamental type religions. They all have a huge laundry list of minor science flaws to HUGE science flaws. Fundamentalism Christianity in the U.S. tends to take the lead in this war of fact versus opinion. There are plenty of fully qualified scientists out there that are religious, but ones that tend to go against the full body of evidence and scientific community to prove a religious claim tend to be "not fully qualified". They tend to use full scientific data and factual evidence to create a new theor...I mean hypothesis (many will try to use "theory", but their reason for their arrival at the new understanding tends to have no basis) and inject a very large amount of opinion, sprinkled with some facts. One such example is the red-shift video provided above by @shinyblurry .

Science can become a VERY heated area of topic when it comes to religion. This begins when a religion: tries to debunk a theory or a part of it, to commandeer a theory and direct a new conclusion to fit an already preconceived destination which has not been peer-reviewed or tested, repeating scientific theories in religious pamphlets or media while purposefully undermining the theory by not presenting in full and correct context or actually printing falsehoods, lying about the nature of scientific testing, repetitiously incorrectly stating current stances on various theories (like radio-carbon dating, etc...), attempts by any churches through the state to eliminate the teaching of branches of science--especially ones that have been tested so much that have attained the rank of THEORY (Evolution, etc...), again the use of lying in media against science--this has reached every facet of media-large and small.

I'm sure there are more. History has been a great use to show us what religion WILL do to science, even though all that is being shown is the truth. It truly is a dangerous weapon. If you can't except truth what hope do we have for you. Yes you can be a good person, but somehow you're flawed, unable to except reality.

When I was a believer (no matter what @shinyblurry says I was; I was Mormon and shiny seems to believe that his religious path is of course a T3 hard-line; were as Mormons just get the basic 56k dial-up...) I FELT the presence of God, or more accurately The Holy Ghost. I had no problem believing in everything science told me when I was religious. I knew it was the truth and I knew that God would not want me to ignore the grand insights into the workings of his masterpiece. I could feel in my soul, the first year I had physics, that something profound had just happened. I had found something I had been searching for my whole life. I felt connected to everything. I began to dismiss those that were religious around me and disliked evolution--to me evolution was so simple and yet such a wondrous way to create the most complex of things from literally the simplest. A literal masterpiece. So I do know that some can believe all that science says, but it's very hard in Christianity.

So I hope I made a point with this. Anti-theism comes from quite a few directions. The most usual and common sight is that you'll see between someone defending scientific theories, while the less common will be those that have been directly burned by the religious community they most likely once belonged to. The last is of course what was brought up in earlier posts: atheists who turn into anti-theists. They tend to be the kind that will assert that religion is evil no matter how small or insignificant it may play a role in someones life.

In the end most atheists boil down to this:

Stephen speaking to a religious friend...
“I contend that we are both atheists. I just believe in one fewer god than you do. When you understand why you dismiss all the other possible gods, you will understand why I dismiss yours.”

~Stephen Roberts