Honestly, partying right now is just as mindless as soloing doblyns was so I don't see the point in all of this. The way to incentivize partying is to make it a fun AND rewarding experience. Until such time as the combat situation is fixed to make partying actually fun I think we should be allowed to solo effectively (a la doblyns). That's just how I feel, of course. Maybe everyone else has a blast in parties and it's just me.