methylone is psychedelic but it also has some properties of highly abusable stimulants. . . while giving genuine insight it can also be used for confidence in a social setting. if used excessively for that, say, every weekend twice at dosages of 300mg upwards taken over teh course of an evening, approx. 100mg each time, and also occasionally during the week, it will create its own set of problems not that much unlike mdma, though seemingly milder ... mood swings and exhaustion and all this entails.
Add to this the fact that the peak gets shorter and shorter and the comedown ever longer if used this way, and you know that that methyloen does have a high addiction potential and ought not to be taken lightly. At first it may allow for this, but its addiction potential is for real.
Personally, I do like to use it, and I probably use it more than is reasonable from time to time, and I am familiar first-hand with what I have described above. But due to my extended experience with a variety of drugs, I do not think I am addicted to it, and I take breaks of a few weeks whenever the experience seems to be turning a little sour.
But I do know someone with considerably less experience with drugs in general who IS addicted to it socially, and it was me who introduced him to it... be careful with this one.
Prior to using too heavily, consider that.