I used to call it "nu rave".
I used to call it "indie" and even NU RAVE. It started around 2004 and to me ended in 2010. The next tumblr, sad boys/girls, 2012's aesthetic wouldn't fit into this whole mess. I think "indie sleaze" is just as an aesthetic, not an attitude or a music style. I'm hoping once this generation get tired of partying (those around 20 and 28), leave the nightlife and let their younger brothers have THE REAL INDIE, because: they will be TIRED of current music and its algorhythms (trap, reggaeton, dark techno). and they will seek to listen at LIVE bands again. some of them will be so fkn tired of everyone wanting to be the next super famous"artist" or "influencer" that they will be ok with having photos stoned, puking, and not possin again. I really hope that is the close future, i'm betting on it, and if otherwise, i don't think future fashion/art/music scene will have absolutely nothing new to give. Maybe, human creativity and free...