The Christian/theist ‘gotcha’ threads are almost the worst.
About once a week, someone feels the need to declare why they are an atheist, why X doesn’t make sense, or whatever. It starts of as now, let me just preface this with my background, and this nonsensical thing is really bothering me so can you all please back me up here on the obvious? Yay, I joined the Strong Atheist Club!
Everytime I see one of those, I think, yeah, that’s a stupid thread, we’ve beat that dead horse and yet it always gets 2-3 pages of replies.
Another annoyance is when something major is happening - someone died, or something happened in the election or whatever is dominating the news cycle - and there has to be 13 threads about it, with each threadmaker thinking they were more unique and introspective than the last. I mean; really? I know this his commonplace at most message boards, but Dopers are supposed to be a cut above the rest.