Especially when its on a sensitive subject - am intrigued as to why people don't read a whole thread before posting their opinion.
I always feel for those brave posters who post in AIBU and then accept they have been unreasonable and still get lots of posters commenting on their OP without having realised they've backtracked. I mean the OP's posts are even high lighted now so its easy to at the very least read their comments even if you skim over others.