Worth knowing that when I give a community to a new mod, I send a PM to the existing/previous mod (who appears to have been idle for months or years) - becuse nothing is necessarily permanent. If someone does come back, we'll talk about reinstating them - hopefully working with the new mod because the more the merrier. I've only had one reply so far and it was to say "fair enough, let them have it" lol
Can only speak for lemmy.world, but figured it's worth saying :)