> Usenet also didn't have a good way to deal with spam Nobody really does. The only way you can keep a channel spam-free is to have humans spend time monitorin

> Usenet also didn't have a good way to deal with spam Nobody really does. The only way you can keep a channel spam-free is to have humans spend time monitoring it to keep the spam out, which is a huge cost asymmetry in favor of the spammers. Anything algorithmic gets gamed and, eventually, broken entirely.