Here’s the thread (archive link) that the admin intervened in:

@naevaTheRat@lemmy.dbzer0.com, cats CAN NOT survive for long with a vegan diet. Its dangerous for them. Cats are carnivores.

Please refrain from removing warnings about such dangerous facts. Everyone who killed their cats by doing so, have a nice rest of your life knowing you killed your loved pet.

p.s. yes i am a cat owner.

Edit: to the rest of the mods: Dont promote harmfull things for pets. @naevaTheRat@lemmy.dbzer0.com and @Eevoltic are demoted.

If anyone else thinks pets should be vegan i have no problem banning them for being a troll and promoting killing pets.

Just that you heard it from me too: YES cats can survive vegan diet for few months but prolonged exposure and it gets harmful for the pet and even death.