Miasma Melancholy
There's not much a person could do to change a forum of any kind without being an admin/mod of some sort, and even then you can't change the people in it. Nothing short of banning them anyway.
Then how about you shut up and leave? Crying about it just makes you look like a fool, and it's clear you don't have the will or motivation to actually help things change, irregardless of what you think it takes.