I don't want to make this too specific because then it would be a TAAT, but to give a general example: OP starts a thread that says something like 'I went to an expensive seafood restaurant and I was served stale bread, warm wine and I think that one of the oysters was past its best. The staff were unhelpful and I think I should message their head office. How should I go about it'.
INVARIABLY, someone will come along and say 'I hate seafood. YABU to go to a seafood restaurant.' Then someone else will come along and say 'YABU to eat somewhere expensive in a COL crisis. And what about the situation in Gaza/Sudan/Ukraine/Wherever'.
It is so so annoying and people do it all the bloody time on here. AIBU to find this so annoying?