Me myself and I

I've never actually been in Buffy-fandom, because at the time I loved Buffy to bits, fanfiction and stuff was pretty much manga-centric still, then sweeping over into Harry Potter before Supernatural came along and turned me into an actual involved *crazy eyes* FAN. So this was an interesting read, because the thing that actually made me put Teen Wolf on more than the 'watch on air day'-list was the Sterek dynamic - not even necessarily all the way to the down and dirty slash - and I loved Stiles from the start, because to me Scott might be the protagonist, but Stiles is definitely the narrator of the story. In terms of Sterek fic, I kind of hit the same kind of frustration than you did, though, lacking your experience from Buffy-fandom I attributed it to a whole other set of reasons. To me, Teen Wolf and the corresponding fandom felt a bit like a surprise smash hit turned into a ready-made skyscraper stomped from the ground in way too short a time. So, some experienced fandom writers from other adjacent digs (hello Supernatural fans) switched teams, but also a lot of new crowds discovered fandom as a way to extend the show past of what you have in screen time. And considering there's a lot of MTV audience in it, I think it's save to say a lot of those are young t(w)eens who haven't gotten past their screaming fangirl phase yet and had no chance to temper their writing skills in other fandoms. So a lot of stories are just the baby steps of some very inexperienced writers (and we all were there at some point in our lives, weren't we?) who have not yet discovered that popular clichés churned to butter not a story make. I think the truth is probably somewhere midway. Some people don't care about writer's etiquette and just go for that instant gratification kinda deal, others are not mature enough yet to have discovered such sophistication, thus, the gems are frustratingly hard to find. Pardon me if that did not make any sense at all, I'm just spilling thoughts.