They are two different conditions that appear similar. But they are not the same.
Maybe, but I wish it would be like the Internet pre-2000. That is, it's reserved for mainly nerds our curious people/ early adopters. I really dislike the modern state of Internet and how bloated it is, and why the heck do I need 16gb of ram just to browse Web pages when they don't do anything more for me than 20 years ago.
Back to the original question, it will grow for sure, but some issues: when I google "lemmy" it brings up the musician in the top posts. Also (and I don't understand how this platform works yet) won't bandwidth be an issue if many people visit. How does that work? Especially if it starts hosting images. I read that it's funded by donations. I know Wikipedia functions just fine on that model but that's an outlier when you look at the net.
I'm sure that someone will dox themselves, then somewhere else mention where they work. Post on some gonewild pages (is that a thing here) and then make a poorly worded opinion on a sensitive subject and lose their job. Of course Internet hygiene is important and you shouldn't dox yourself but after several years you'll slip up and these things will bite you .
EarthPixels. CarPixels. PornPixels. HistoryPixels. This could work.