Stop swearing or I'll report you.
In all seriousness, all these blackgaze bands were so popular that before I heard the subgenre I figured I'd like it. I hate it for the post part. I just don't get how those sappy sounding chords fit in. As soon as I hear them, game over. I wish I were a musician so that I could specify more clearly what I'm talking about. Also, and this might sound petty, but when I watch live metal show on YouTube I want to see metal heads in the audience. The blackgaze shows I've watched had hipster audiences. Extreme metal is going mainstream, which judging by most popular music nowadays is a bad bad thing.
If you think blackgaze is "mainstream" I challenge you to go out to any bar on a given night and find many people who've even HEARD of Deafheaven, Ghost Bath, Lantlos, and Russian Circles let alone are fans or could name an album. XD
Metal was mainstream in years gone by, it ain't even close to it now. People trying to act like Sabbath, Priest, and Slayer weren't household names back in the day. Unless Cattle Decapitation being number ONE HUNDRED on the Billboard Top 200 counts to you as mainstream, you're just being elitist, and being surprised that there are hipsters in a blackgaze show is like being surprised to find sports fans at a football game. What are you expecting in a blackgaze show? Corpse paint? Bloody arms? A moshpit?
I'll tell ya who I don't want to see in the audience at a metal show: a guy who gets mad that the "wrong crowd" is in the audience at a metal show.