Since I see more of those 'RMT are sending me friend requests' threads popping up, I thought maybe this could do with a little more visibility.
/busy will block friend invites, LS/FC/party invites, trade requests, /tell, and probably some other stuff I haven't thought of.
While I hope SE can address the real problem in time, this can be an excellent bandaid if you're getting inundated. It also puts a quick stop to some of the more malicious trolling techniques.
Thanks to Kayo, I've learned there's another way to handle this with a slight modification of the usual /blist macro:
Code:
/flist deny <r>
/blist add <r>
edit: adding macro