*** Original post on bio 456 at 2010-07-27 02:36:00 UTC *** It is necessary (only on occasion, hopefully) to block buddies. Also its a Currently Instantbird has no UI for adding users to a block list. Different programs do this in a variety of ways. Some give a block list that you manually add screennames too as the only means (or maybe that's very '90s), but ideally you should be able to do it via a context menu I think. Also if a buddy requests permission to add you to their buddy list you should be able to allow, deny or deny & block.
*** Original post on bio 456 at 2010-08-02 19:58:15 UTC ***