Can we get someone banned?

Reporting him a larger number of times won't change anything. The admins will view it once, all the same, and determine if he needs to be banned.

He posts some strange stuff but I've seen nothing of what you're describing

I remember he went on a similar spree a while ago and several of us reported him then... I guess it didn’t take

Report it. If it is exceptionally bad message a mod or admin about if if it needs immediate attention

They don’t like rats