When you enter your portfolio, there is a listing of how many pings you yourself may have received. If someone posts something that is downright vile or stupid and has no right being available for little children to see, you can crap on that post. You can only ping or crap a post once. But many people can do it, so a good post can earn you some nice cheese. You can receive or give a ping on the article boards, the yapper, or directly on a soul's SoulStats page.
Every ping awards a soul one soulbuck.
Craps are like detergent. If there's a yap that you think has no business being on this site, crap on it. If enough people share your feeling, the yap will disappear. Because some of you people are disgusting, let's face it.