Anti-spam

[JerryWester]

Is your feature request related to a problem? Please describe.
As of late, user accounts have seemingly been compromised, and started spamming scam Steam links. In smaller communities with fewer administrators, it's difficult to moderate these incidents at all times.

Describe the solution you'd like
I propose that Melijn should detect these incidents (if a user has posted the same message in 3 or more channels) and automatically kick these users, as well as posting a message in a relevant channel (i.e. moderator-only bot channel) to make moderators aware that a potentially compromised account was kicked for spam.

Describe alternatives you've considered
There is the possibility of detecting the scam links themselves, but these scam links are often not the same between messages.