I use a variation of this approach to display fediverse comments on a statically-generated site. It does involve a manual post to Mastodon, but I'm not very inclined to redo the whole site.
No single entity can ruin it. We've seen that happen over and over when someone's political or economic goals conflict with user interests.
BlueSky actually talks about this quite a bit, viewing the company as a potential future adversary of the current developers' goals. I'm not sure their design choices align with that in practice, but they articulate the argument well.
Another cool thing is the broader reach federation provides. Someone with a Wordpress site need only install a plugin and people can follow it with Mastodon and the like. Tag a community in a post and it shows up on Lemmy too. This is underused so far, but I hope to see it continue to grow.
And that is what I would recommend against, even on a server that does not ban that age. If someone's (young) age is relevant to a discussion they wish to participate in, I would suggest a throwaway account.
How were they revealed?
Why do you care?
If it's just about following the rules as a matter of principle, I suggest not doing that. Nobody is checking, and saying your exact age on public social media is oversharing anyway.
If it's about content moderation being strict enough to satisfy some comfort level, I wouldn't rely on that, but I also think 13 is old enough to start learning there are shitty people online and how to deal with them, preferably with some adult support.
Android, iOS, or desktop?
I've noticed the occasional slow delivery, but I have had reason to believe the recipient has an unstable internet connection when that has happened.
I reloaded the article, scrolled past the ad wall and found the rest of the text
That explains the confusion. Do you need a recommendation for an ad blocker?
When I have a reason to use a Chromium-based browser, it's usually Ungoogled Chromium. Otherwise, I use Firefox, and I've been playing with Waterfox in case Firefox ever asks me to agree to the terms of service that were discussed a little while back.
signal got overloaded, experience degraded
I did not experience this, and I've been using Signal daily for years. Prior to 2020 or so, I experienced more unreliability and hesitated to recommend it to the average person.
I'm familiar with the problem though; in most of the EU and probably other places WhatsApp usage is so high that it's a major inconvenience to avoid it entirely.
A fair number of my contacts from countries where this is true also have Signal. If you don't, I suggest installing it and seeing how many people are there.
If it's hard to remember who uses what, start conversations from the contacts app instead of one of the messaging apps; in most cases it will tell you.
I don't think any evidence has come to light that WhatsApp's end-to-end encryption of message contents is broken, but it's also impossible to prove that it is correct because the client is not open source.
There is a legal basis: congress passed a law, the president at the time signed it, TikTok sued, and the Supreme Court unanimously ruled against TikTok. That's a legal basis by definition.
Perhaps you mean that there is no rational basis. That's a reasonable position you can argue for.