dubstep is a mainstream 'genre' at the moment. no doubt. I also truly believe it is an unappreciated genre among the dance community masses and will be replaced by another genre as quickly as dubstep came into EDM. Skream has left it now, but when the 'demand' for it is dead & 100,000,000 people are not trying to replicate & rape the genre for the sake of easy soundcloud hits he will go back to it, just like when he was 14. imo. time will tell.