You'd probably just have to have people create accounts, verify that they aren't bots through email and captcha, then wait for them to achieve a certain amount

You'd probably just have to have people create accounts, verify that they aren't bots through email and captcha, then wait for them to achieve a certain amount of cred before allowing them to have a public channel. And include a flagging system, of course. And add moderators. So yeah, not exactly a short list of things!