I'll tell you a theory, most of the molly in aus at the moment is probably imported, cut then distributed. A LOT of cash to be made from fuck all if you're willing to give it a burl.
Pill pressing is expensive, and with bulk MDMA prices starting upwards of 100k, I can't see many people pressing pills in the future. In melbourne, I see a lot of MDMA 'crystal' - in terms of purity if i were to go by a dutch sample at 81-85% purity with a dosage of 100mg, i'd say the local stuff is closer to 35% purity, just based on what i've tried. This isn't law - it all depends on who you know.
All I can say to this is, 150~mg gives me eye wiggles and blurred vision.
Also if you checkout the online drug marketplace (don't think I'm aloud to say it) almost all the MDMA from the Netherlands and Germany that is being sold is brown crystals that look almost identical to the stuff in Australia. Anyways if it is being made locally it is definitely not of low purity.