I never had bad feelings on MDMA, or afterwards. No comedown either, on the contrary, plenty of afterglow. The interpersonal variability of these experiences is amazing.
Indeed, my first reaction to that statement was that that is not typical. It happens, sure, but for me it is always so fascinating that the MDMA / Ecstacy trips just kind of switch on and off, and everything afterwards is as it was before. Perception of colors, shapes, people... phases back in, but there is no real down phase. The next days are a little drab, maybe, with the serotonin level being rebuild, but not really down, just maybe less party feeling. I never took too big of a dossis though, maybe that's the reason?