I'm more into just educating the users to not post shit they don't want out in the public in the first place. No matter how good the efforts of the server administrators are in removing the content, there's still the possibility of users, be it actual humans or bots, collecting that content and continuing to spread it elsewhere or otherwise use it.

I mean, go ahead and follow their request if they do ask, but also explain to them to maybe think a little harder about what they are posting because you cannot guarantee someone outside your sphere of influence doesn't have the same content saved somewhere.

I have a Mastodon, Friendica, Peertube, and a PieFed instance. I'm an Admin.

Let me make sure I understand. You are asking whether I would care if you were using my server, and you asked a different server Admin to remove your data from their server (and probably ban you on that server)?

If this is what you are asking, I personally wouldn't give it any thought. It's your data. If you don't want it on some other server, then you certainly have that right. I frankly don't think any Admin would have a problem with this. Even the opposite would be fine. If someone asked me to remove their data that came in remotely.

I might even be impressed that you are enforcing and thinking about your rights to privacy and your right to control your own data.

Not an admin, but from a legal perspective, users in the EU have the right to request deletion of their data under the GDPR, which the consequences of violation are up to €10m or 2% of annual turnover (not profit), whichever is higher

Frankly, if a user asks a service owner to delete their personal data, the service owner should do it as promptly as possible.

Following this thread because I think it's one of the very interesting unanswered questions about federation.

I personally would if User didn't post anything to communities on my (bookwormstory.social) or similar (ani.social) instance.

I saw that link rot on lemmy is real. Missing poop post. Hijacked links in posts from over a year ago. Images deleted. I don't want to contribute to it.

It mostly only effects their own usage to be banned from another server, so why would an instance admin care?

So I'm not sure where I fit in. I run my own instance, but it's a single user instance that only serves me. Also, I currently don't run any magazines (communities) of my own.

If I was the user on Instance A asking on Instance B ... well that means Instance A is my own, and I obviously wouldn't get in trouble with myself.

If I was the admin on Instance B - a user from elsewhere was asking me to remove such content on mine - I'd go ahead and do it. Not worth the potential headache or ramifications that would come with refusing.

I think in general, the admin on Instance A would not be upset with the user. If anything, in this situation the user is probably trying to delete their account and history, so the admins of Instance A would be thankful that the user went to instance B and saved the admins the headache of trying to contact other federated instances themselves to coordinate a manual deletion. (The only thing worse than dealing with a GDPR request is trying to get others to help you deal with a GDPR request - particularly without pay.)