Basic essentials = Spammers

Probably the most harmless, but the most problematic individuals,
Spammers like to post endless text messages, on a person's
Profile page, and in their private messages. It could be for
1) another site or product advertising
2) disturbance
3) trolling (trolls do almost all the bad things)
4) purposefully to get their links wiped after a warning
From administrators

Currently the new admins permanently ban a spammer after a report
They are a short life account. But very inconvient to suffer from.