Lemmy.world has kept open signups open during every large Reddit exodus while many others didn’t. It’s also decently reliable, has decent moderation and is well known. The reason why people didn’t move after is probably because instance migration on Lemmy isn’t possible* so they just stick with what they use.

*Yes I don’t consider exporting/importing followed communities a migration

You can only export and import followed communities afaik

Contribution rules

1. I am a U.S. citizen or lawfully admitted permanent resident (i.e., green card holder).

Does anyone know why this rule exists?

Yeah, I first thought it was optional and was pleasently surprised when I found out Lemmy implements it, but I’m not quite sure if other software properly implement it either.

It seems like that is part of ActivityPub and Lemmy implements it.

Yes, but what if someone just creates a new instance and adds previous accounts. How do other instances know that the running instance has changed and didn’t just go offline if it’s registered on the original domain?

I feel like this could be abused by a bad actor by recreating instances in several ways:

1. Use the “dead” accounts that are still mods on communities on other instances.
2. Sneakily monitor user behavior (like votes etc.) without looking out of place.
3. Impersonate users.

I feel like it would be a good idea to start a list of the domains of dead instances and add them to a blocklist until the original people start using them again.

EDIT: This doesn’t seem like a real problem due to key signing.

Weird, nr 86 doesn’t seem to be decoded.

Is this your overview? If so maybe you could decode some of the punycode in the domains

Instances can see who downvotes who. You can see all of that if you run your own instance that federates with the relevant instances.

there’s no way of knowing for sure if it will be deleted from other instances

You can’t be sure if something is deleted, because there is no way to prove you don’t have something.

However, if you just want to check if the instance claims to have deleted something, you could probably just perform a GET request for the specific object as defined in the activitypub spec.

They don’t. It’s just wild speculation while in reality lemmy.world probably banned it because they got a legal notice and don’t want to get sued.

How can you verify you don’t have something?

Do you mean verification to prove something is deleted?

The top bar keeps disappearing when I use it (also iOS)

I still don’t entirely understand it because I’m missing context but at least it’s coherent now. Thanks for the translation.

Does self-hosting with those extensions require a lot of system resources?

I wasn’t able to find an option to use Lemmy search an several public instances. Do you know an instance that supports this?

…ad targeting, and potentially harvesting data on Meta’s behalf

That is already possible regardless of federation status.