I think this may be closer to the reality of the situation. It's not so much that IDs are private, it's that people want their Twitter (X?) account to be anonymous.
I get that. My username on Twitter was my real name so I kinda messed that up right away. I didn't really use it though.
I can't speak definitely, but I'm pretty sure it's been made illegal to have your driver's license ID be a derivative of your SSN. That was a thing that happened though.
But I can't tell if you're pointing this out to strengthen my stance, or weaken it. It's still something that gets scanned to get into a bar or buy alcohol, and that's effectively the public, right?
Sure, but if they're not really private information, then what is the concern? It seems to function similarly to an email address, kinda? Something I'd really rather not be shown to the public but also something I'm giving out to the public all the time.
Yet you show them to the minimum wage earner before buying alcohol, or let a bouncer scan it before getting into a club? That doesn't seem like something you'd need to do with private information.
I think he means that instead of everything on the early internet being ad supported, they should have just made people pay. Think about it; how much of our problems are because everything is a race to the bottom to capture the most eyeballs? Clickbait, recommended algorithms designed to make you angry, news as entertainment, etc.
This was always the outcome of ads. If you want it to stop, start directly paying for things. If you want to continue this arms race to the bottom, keep doing what we've been doing. (not you you)
On Mastodon? I distinctly recall reading that it did not have one but I guess these projects are fast moving so maybe it has changed or I am just mistaken.
This might be a little bit reductive, but I'm pretty sure you can tell that they're not competent lawyers because they are Trump's lawyers.
He's known to ignore his lawyers, lie to them, refuse to pay them, and throw them under the bus. I can't imagine a competent lawyer wanting that client. Maybe someone just looking to get their name plastered everywhere, aka some kind of grifter, but definitely not a competent lawyer.
This is how I mainly used Mastodon before Lemmy. It lets you follow topics instead of people; I prefer finding content this way. Unless a person really likes the format of Mastodon better, I'd suggest Lemmy over Mastodon for people that would rather follow topics than individuals.
That's not any working definition of private information I've ever seen.
We're talking about privacy in the context of information security.
Edit: for context, I'm not questioning whether people must give their ID to Twitter.