I also have an account on another instance. The sole admin hasn’t been heard of for three weeks. There don’t seem to have been any mod actions for a month and the instance hasn’t been updated to the latest version.
At the moment I’m more concerned about the admin (I hope they are okay). But what would happen if they don’t show up? I guess eventually the instance would disappear without warning or be defederated if bad actors take over.
Is there anything built in to Lemmy that would allow a takeover if a big instance went under?
No, and that’s why I treat every account I open on a single admin account as a throwaway that could disappear tomorrow.
I respect single admins, they do a great job, but I also know that life can happen.