Punk was like the hippies, it really only lasted about a year, and then everybody became a “poser”.
Yeah it got mainstreamed.
I went to a lot of shows back then but I dressed like a normal college student that I was at the time. None of the outlandish dress bothered me much except at one show someone showed up and planted themselves right behind me and he was in a wheelchair dressed up like Dr. Strangelove. That made me do a double take. That era was like an endless Halloween.