The reports of bunk 'MDMA' crystal aren't just coming from random caners who've only been doing pills/crystal for 3 years. They're coming from experienced users, who know what dose to take.
With the last crystal I bought (search through my posts and you'll find a photo of it - it looked pretty good, and tested black with Marquis), I started by taking approximately 200 mg, which should have been enough to get me seriously high. But I got no euphoria, no empathy, no music enhancement, no energy, no blurry vision. All I got was a really dirty 'fucked' feeling, and it also made it incredibly difficult for me to urinate (I've had this problem from pills in the past, but I've never had it as bad as it was with this crystal).
I find it amazing how many excuses people are coming out with for crap MDMA. It seems people are determined to beleive that the 'MDMA' is infact good ('afterall, my dealer told me it was good, therefore it must be good'), rather than consider the possibility that the 'MDMA' might be crap, or even that it might not be MDMA at all. Sure, every MDMA experience may differ slightly, but no euphoria??? no empathy???? - cummon man, don't patronise everyone by making excuses as to why this garbage MDMA isn't working. Face the facts - it's either incredibly impure MDMA (most likely with an adulterant deliberately added to it), or it isn't MDMA at all.