Censorship will only ever hurt you. If you intend to be on the chans you have to trust your user base to use the ability of discernment on their own and let them battle it out with the shills, it's what has always been the way. If you want wanton censorship take it to reddit and twitter. This is the land of almost any thing goes, and that is what precisely gives us our power, no subject to taboo to discuss, after all they are only words, pixels on a screen, some thing some thing about what doesn't kill you.