I propose that if a person spams his advertisements in the comments once, he gets a one day ban. However, if he does it again, give him a 2 week ban for it. One month bans will be given for the 3rd and 4th times, but on the 5th, you're permabanned. That will cut down on the "big name" spammers seen across multiple comment sections over a long time span.
However, if a person advertises another person's place in the coments who is CLEARLY AN ALT, he gets PERMABANNED instantly with an IP ban. Sure, they can use a proxy to bypass this, but that can't be helped.
TL;DR: ban these scrubs |