

Piefed seems to have this, and the ability to subscribe to posts as @TheLeadenSea@sh.itjust.works asks about below.
Migrating is fairly straightforward, it can import your lemmy settings to get you up and running quickly, and the systems interoperate seamlessly, which is fantastic to see.
Surgery, especially on animals.
In any other context, someone cutting you open, slicing bits out or rearranging them, them sewing you shut would be considered horrific, but we do it because we know that the short term suffering out weighs the long term harm of not doing it. When you choose it for yourself it might not be too ‘evil’, but an animal would not understand, even if you know it will mean they get to live a long, happy life, free of the pain and suffering that issue would otherwise cause.