I'll start off by saying this, I don't know much about the series in question, as it's been a long time since I've read any manga or watched any anime, but the way that you're talkin about it tells me that I don't need to. I've seen this same discussion a million times before and it will happen a million times more. There's nothing wrong with wanting something, in this case a community, to be better than what it is, but I honestly believe that it's just not possible for the simple reason that I don't think that it can be anything more than it already is. The people you're complaining about have been here much longer than you or I. As a result, this medium has been built to pander toward them. And I don't see them going anywhere anytime soon. Bearing that in mind, the average person just simply wants to consume media without ever really thinking about it. Hell, some people don't even consume the media and just want to be a part of a fandom. You see this whenever something gets too popular or mainstream. Seems to be the fate of all cool ass things that get too many eyes on it. Which is why it's strange to me that you want this medium to become more mainstream seeing as your problem is the direct result of it becoming more popular.
Don't get me wrong, I know you're probably just venting, but it sounds like you just want people to enjoy something the same way you would enjoy it, which is simply asking way too much.
Either way, I've rambled on long enough.