I posted this on another thread. But it bears repeating.
All the shitposting, name calling, and flamebaiting on this and other boards all comes down to one unalterable fact: Boku no Hero Academia is popular with Western audiences. Articles, videos, Halloween costumes, Monopoly sets; it's like Pokemon during its heyday. Not HxH, not BC, not any of the other series that people trot out, but that 'capeshit' stuff, BnHA, is the hot thing right now. If the supporters of those other series were secure in themselves they'd shrug it off or even be happy for such a rousing success, as that will attract more people to the hobby. If they were insecure autists and incels and worse with paper thin self esteem, such popularity for anything but the object of THEIR obsession would be seen as a devastating insult and reputation of their worth and they'd flood boards with Dark Matter level postings attacking everything about the show and its fans.
You know, like they do...