As far as I'm concerned, anyone who doesn't want to know the result of a particular sporting event should simply stay well clear of social media (and 'interactive' websites, such as AB).
However I don't think that having a post disappear is really something worth getting one's knickers in a twist about. I've just spent 10 minutes carefully putting together an answer on a thread, only to find that the poster has been zapped, so it happens to all of us!