I do not have a problem with the nerd/tech bubble being on Lemmy and I am not hostile towards them. I have a problem with them being the ONLY community able to participate because how complicated some aspects of this platform are. Why would Lemmy have to be ONLY "on the nerdy side". Different people with different interests can coexist because you can create whatever community you want and they can also decide what content they want to see or not. Who are you talking about when you say "We". It's not like you or the tech community owns the feediverse. They might host most of the servers because guess what tech savvy people know how to do that but that's just part of the problem.

I strongly disagree with the whole idea of a site going down in quality when everyone uses it. There will be more bad content but only because there will be immensely more content in general which is the major benefit that Reddit had. "Bots, shills, ads" are a side effect of a site being popular and you can't have the one without the other. Reddit did not die a "slow death". Before the whole API things millions of people browsed Reddit everyday and created interesting content. If you don't like r/all the solution is obvious: Don't go there. Only visit the parts of the site that you are interested in. That's the whole concept of the home page. It has nothing to do with users refusing to learn but rather the site making it harder that it has to be.