Just ran into this tonight while running with 5 other guildies. I gave the "afker" an ultimatum of "get over here and ready for the first boss fight or we are leaving you." ...well we left. The other non-guildy that was with us agreed. If you see people doing this just leave. Continuing the run just makes it easier for them and harder for the rest of the group. Treat them like Trolls. "Don't Feed the Trolls".