No one ever does them. Ever.
Rarely I see 1 or 2 people in their own separate mpa on different blocks but that's all.

Looks like Sega done fucked up royally again. Is it some bs like each player must have a certain stage unlocked to play it and there is no point to ever ply earlier stages again or you can't even do it, and since it's account wide it's not even like BQs where alts have to start from scratch?

Which means since I didn't play Divide Quests in the week they came out I can never play them with others or something?