Vanity postings are OK. But most people clearly label them as vanity postings, so that the rest of us know it before we go to read it.
It seems to me that some just hate vanity postings period. If someone doesn't like it don't click onto it and if you find yourself on one just leave. I enjoy listening to peoples' thoughts and feelings. BOR has shocked many and people feel the need to vent. This is part of being human.