You're banned (forum game)

It's subjective, but in my opinion, actions that do not accomplish any goals, nor change a person in a positive way, are pointless. Posting "X is banned because X" might be fun, but it doesn't accomplish anything nor change people in a positive way.
You can have fun while accomplish things and/or changing yourself in a positive way as well, it's possible, and durable.
I would recommend that, instead of posting here, people go and play long games of draughts or chess. That will improve your patience and you will also be having fun(If you like those games, off-course).
Just some thoughts.