Oh I thought we were talking about permanent bans of actual separate and distinct people. My bad.
Yeah troll accounts/multiple handle accounts get permabanned all the time. I was referring to how we deal with the person who made the multiple handle account in the first place or other repeat offenders.
And yes, what DH said regarding temporarily permabanning an account until they contact staff is done as well. That's less of a disciplinary measure and more of a means to ensure we get their attention and address the issue before allowing them back.