[Xastir] Blocking a callsign?

[Steve Huston]

There's someone local to me who has started spamming bulletins, and
while the "right thing" might be to ask them to knock it off I don't
feel like being confrontational and am happier to just add them to my
killfile.  I've used a '-b/CALL*' prefix on my aprs-is connection, but
some of the packets seem to come in over RF and will still be showing
up; is there a simple way to get Xastir to ignore packets in some way?
 I think the answer is no but wanted to ask Greater Minds before I
give up and resign myself to putting the APRS system's display to
sleep every five minutes when they send another one.

-- 
Steve Huston, W2SRH - https://srhuston.net
“And no one sings me lullabies, and no one makes me
close my eyes, and so I throw the windows wide and
call to you across the sky.” - Pink Floyd, “Echoes”