Can't say I have a clue what you're on about mate. One or two people do that if that. I don't recall anyone ever throwing something I've said previously in my face and if someone did I'd politely laugh at them and inform them that people change their minds.
I have no idea who the clique is you refer to.
As for the joke stuff, are you saying people having a laugh is showing off?
People take what they want from this forum and good on them, some take friendships, some take the news, some practise their right to be judgemental over strangers, some air their personal life on here, some look for advice on where to have a drink. That's how it is, how it has always been and how it will carry on being.
If people get to the point where they feel like they get nothing from it they leave.
All is well in the world.