I would say also a dedicated casual. I play late at night with some friends of mine when I can and we all have lives, some busier than mine. I don't see us planning to leave because there is no match making. It just requires you to make friends and coordinate. That's not hard. If we have matchmaking for the raid there will be a lot more complaining than a level 30 whining that level 29s ask to join in the hard raid (there's ways 29s can do it - my team had one 30 and we got to the gatekeeper). Or people complaining that everyone is a moron. Honestly this community complains enough, matchmaking will just make it worse, then you will see some casuals and some hardcores disappear just out of frustration.