If I get reported AFK when I'm not AFK, I respond with:

/run for i=1,GetNumRaidMembers()-1 do local unit = "raid"..i local name,realm = UnitName(unit) if(realm) then ReportPlayerIsPVPAFK(name.."-"..realm) end end

With five toons running that macro, it reports every person in the BG as AFK if they're not from your server.
One of the Legion of Boom guys originally posted that macro, and it gets people rather upset quickly.
I like to pipe in, some idiot reported me AFK too, and I'm not AFK...