This spammer created multiple accounts on various Lemmy instances to post self advertisements. How do we combat this?
(media.kbin.social)
Depending on implementation, the ban may also purge past posts so the "already pollute the fediverse" won't be that big of a problem.
Can't get too proactive beyond suggesting admins implement captchas and the like. Email verification. And that won't stop all.
I don't see this being much different than what occurred on reddit.