I know I do! Some people complain about threads that never die and that appear eternally on their profile. I don't really mind that so much -- I just ignore them, but for me it's more a matter of what I will call "the usual suspects." That means that there are posters who refuse to allow you your opinion, and will argue endlessly even when you say, "That's just my opinion, and that's how I feel." Then, there are the posters who absolutely have to have the last word, and will return, again and again to the same argument just to have last licks. Another type links endlessly to googled threads or other internet links to prove how your opinion is wrong, and theirs is right. I've stopped clicking on any of the links because it's a bit like being cornered by a boring boor at a cocktail party. These types of posters seem to most actively inhabit certain threads, so once I've seen that they've posted, I avoid them. In general, I am of the opinion that the mods do a fantastic job, but I would love to see them take a more active role with this type of annoyance.
How about you? Are you prone to avoidance in certain places on Chowhound?