Drew Dewalt. Richard Stevens (Diesel Sweeties) and wait ... why do you give a shit? Why do people have to be famous to be relevant? Follow random people. Remember 90s AOL chatrooms?
Given your tone, I'm going to guess you're not asking the GP a question in earnest. You should try to think about why they might "give a shit".
Twitter's userbase is its primary feature. Not its shitty UI, not its awful character limit, and none of the stuff mastodon's various UIs are copying. Its userbase.
If you want the fediverse to succeed, you need to understand that. And you need to stop being so accusatory of people who don't use the internet the same way you do, FFS.
(And for the record, I want the fediverse to succeed, but I also use Twitter because userbase)
Edit: "Success" in our current world seems to be defined as the transition Reddit has gone through, where the userbase has exploded, its eaten Facebook's lunch to a fair degree, but the quality of discourse and interaction has dropped like a rock.
I've stopped using Reddit, and such a change would kill my use of the fediverse.
People are upset that others are taking screenshots of their public posts?
If you think about it, it's absurd to expect them not to: Even if the community keeps its member list exactly intact forever, and the members remain at their exact same activity level forever, those very members will change over time. Hell, you will change over time and get to appreciate different qualities of that community.
Same reason my guild's forum feels completely different today than it did 5, 10 years ago.
An analogy would be if HN was suddenly overrun with rude, non-technical people attacking other posters and causing drama, and outnumbering the thoughtful and constructive comments and links we come to the place for.
The "eternal september" is particularly sad if you go back and read the archived posts of early usenet - I would kill to get discussion of that quality on the net today.
Nethertheless, if the usefulness of something depends on it failing, something's wrong.
Mock them all you want, in private. Don't bully people because they take selfies, buy tourist gadgets, or follow people you're too good for.
Plan A: Use Twitter (or other media like it).
Plan B: Change human nature.
I wish you good luck in your endeavour with Plan B, djsumdog! :)