No, but it is often what happens.White Line Fever wrote: Not all social media is moderated Psyber.
If all your friends drink alcohol and you're an alcoholic is that reason enough to drink?
Furthermore if your fear getting bashed by random drinks would you go out of your way to antagonise them ... Then cry foul when it turns sour?
Too many excuses these days.
If you can't handle the heat stay out the kitchen.
We are not far removed from our tribal history and group conformity (aka peer pressure) is a powerful force.
(I once put a coin in a Poker machine when I was with a group at a pub.

Moderation of such sites should be mandatory.