Okay, here's the "official" description that started the AU, which all those wips are based on:

horatiosroom:

i’m callin this the myspace au lmao

kylo is a shitty lil scene boy who spends most of his time taking selfies and photoshopping them beyond recognition, seeking as much attention as he can get

hux is a sociopathic cyberbully who needs to chill the fuck out and leave poor kylo alone (even though he ends up being the one kylo wants the attention from most)

the rivalry starts when hux gets more popular than kylo on myspace because of how “dark” and “edgy” and “mysterious” he is lol

tl;dr hux is an ass, kylo has braces and listens to blood on the dance floor, and at some point they manage to ~fall in love~

If you want to check out that post, which is full of cool pictures, here's the link:
http://kyloren-generalhux-trash.tumblr.com/post/142299058673/horatiosroom-im-callin-this-the-myspace-au