In this post, I made the mistake of saying that Lindsay was implying that believers are stupid or idiots. He never actually explained the existence of educated believers in terms of stupidity. But he claiming that theism is a stupid position, undeserving of serious discussion, and supported by no evidence whatsoever. There is a tone of intellectual superiority in these sorts of statements, which is why I used the word "idiot." But it's important to be accurate. Of course, IDiot is a common term used for ID advocates, but they don't strike me as stupid.
Well, besides stupid, there is ignorant, wicked, and insane. Some people argue that educated theists are simply unwilling to consider evidence that calls their beliefs into question. But I remember choosing philosophy as a major largely because I thought that if there were good arguments to be made against Christianity it wanted to know about them sooner as opposed to later. I have been a Christian minority in most of the philosophy departments I studied and taught at.
Then there is the line "faith makes intelligent people seem stupid." But I got my credentials in philosophy working mostly on issues relevant to my religious beliefs, and my dissertation had to pass a committee of people skeptical of my line of argument.