Didn't you write off mephedrone as a 'boring, worthless' drug recently too - contrary to many other peoples experience? I don't know man, I'm thinking set and setting....I just find it really odd you say you coped with heroin and other things but seem to be building mdpv and mephedrone into the devil drugs.
I'd just had enough of mephedrone, I like experimenting with drugs just for the experience and found I was no longer getting anything out of it other than a habit of taking it every weekend....
MDPV just seems to me to have a uniquely high potential for unpleasantness that I've never come across before, as I've said all things considered after less than a week of using it a few times I'd already decided it wasn't something I wanted to use again.
Isn't it the case that the white stuff going around now is almost certainly not MDPV anyway?