It seems that thiefs, scouts, DKs, and even mages have a hard time finding their way into groups because of the 8 man limit.
Proposal - increase group limit to 9 if one of the above classes is part of the group. If you only have barb/paladin, healer, shaman, druid, basher, etc., group limit stays at 8.
This kind of system actually happened back in the day when group limits were 12, but if the leader of the group was lvl 30, the group limit was expanded to 13.
I haven't seen a thief/scout in a group in years. The classes are fun to play but aren't nearly as effective as others.