Well we want to freeze later this year so I started with the axing now. Maybe a bit premature like Mattia pointed out correctly in #debian-qa, because we've some maintained plugins for xchat around.
cwirc a morse code via IRC plugin
xchat-xsys system statistics output to a channel Update: There is a xsys plugin included with hexchat.
xchat-guile GNU Scheme scripting plugin Update: Lionel agreed and created a RM bug. Thanks!
I can survive without them, so I'd be fine with another three RM bugs. Now feel free to flame me, I promise to wear my finest asbestos underwear.