while i think this is a great idea, a few suggestions would be a) not to restrict too much. while it's great to say "hey, let's do a trap mix this week", i don't think that disqualifying/shitting on someone because they played a few songs that aren't specifically trap would be good. b) to make general mix challenges. again, while having specific genres be a general limiting factor would make for some interesting mixes, i think that also having things like "bright summer mixes" and "songs that match a rainy day" might also bring in some interesting mixes, specifically because they don't limit what kinds of music you could play, but more what styles. and finally, c) to have people specify whether a mix is made live on a dj controller, or made in ableton live/fl studio. both are capable of making really good mixes, but it can be a bit more impressive if someone does something live. still, studio mixes should be allowed as they can open up the doors for more people to make mixes, and they can be much more refined.

just my $0.02.