I've been gone for awhile so excuse my ignorance. Does subeta.net/pets/name no longer work, even for legacy-named pets? Is this a bug or a permanent feature?

it seems to be a bug

It's funky for some reason, even with legacy names.

[pet not found]

Should work regardless. 😊

Ever since they fixed the whole [pet not found] thing, the old of viewing pets has been messed up

you can also use https://subeta.net/pets/username/pet :)