Roster Item Exchange should exclude, or include option to exclude, any items for which JID is already in roster
This is quite a "niggle", really, and seems to apply mainly when using a spectrum2 Facebook transport. Whenever a new Facebook contact is made, the transport sends seemingly all my Facebook contacts in a Roster Item Exchange to Gajim. This means I have a lot of irrelevant ones, and will mess up the organisation of my roster if I just accept.
It would be helpful if Gajim could ignore, or at least by option deselect, the ones already in the roster.