Oh, a lot of stuff. The fact he wrote a book with a bunch of garbage in it (
Liberty Defined) and launched a campaign on freedom of religion equaling freedom to use drugs thing and "Did we violate Pakistan's sovereignty when we after Bin Laden?" Not to mention, to question the wisdom of the Dear Leader, or to have a positive opinion of other Presidential candidates (unless they are Dennis Kucinich), makes you the subject of heresy trials in the Ron Paul movement. For instance, I got negative reputation points by a moderator on Ron Paul Forums because I suggested that Ron Paul is the one ultimately responsible for getting himself elected President. Apparently, I should have been doing more for the Dear Leader. I am in the top 30 posters on Ron Paul Forums, btw. Many of the Ron Paul supporters I know in person aren't much better.
Also, Palin becoming a good alternative in my sight didn't help Paul's cause at all. I liked her back before McCain picked her for VP, and she was actually really popular amongst Ron Paul supporters before that moment, but it became dogma to not like her. I figured out that was bogus, so I was finally like "well, I guess I support Palin now, I just hope she runs."
The list could go on. Suffice it to say, it wasn't a spur of the moment decision.
Thanks for your answer. You confirm some suspicions that I had. While he says much that is absolutely correct, some things are . . . odd, and there is a cultish devotion with -many- of his supporters.