Man, I dislike Ron Paul supporters. I've met a few in person and they seem reasonable. But as a group, something happens and they become rabid. They put stickers everywhere, on buildings, road signs, and light posts. I even had a Ron Paul sticker put on my car. I see people randomly walking around Tucson with signs that say "Google Ron Paul." There is a house nearby with a huge Ron Paul banner hanging from it. I suspect a lot of these people are not aware of Ron Paul's positions on a lot of things (for instance, wanting to get rid of the department of education).* They like that he's an anti-war, anti-establishment Republican (and, to be fair, that's not nothing!).
And, now, if you look at the Stephen Colbert for President groups on Facebook, they've taken over those, too! Every other post is about Ron Paul. I suspect they figure that people disillusioned enough about the political process to support Stephen for president are disillusioned enough to support Ron Paul.
*A few times I've asked Ron Paul volunteers about his position on things like gay marriage, separation of church and state, and other things where he does not take the typical libertarian position. They seemed largely unaware of where he stood. Well, dear reader, he is for federal regulation of marriage (perhaps the only thing he's for the federal regulation of!!) and against the separation of church and state (and for me to be saying this, well, that's something. I'm for more religion in the public sphere--though not for more religion in government).
Edit: Thanks to commenter Brent, I realized that I was wrong. Ron Paul is not in favor of federal regulation of marriage, as I had previously mentioned. See the comments for more discussion.