Synthetic taurine is a thing and is widely used in formulated food. Cats are sometimes taken off meat based diets due to medical complications. The posts you removed were reasonable and explained why in good faith, the other poster made wild asertions not based on modern evidence and made anti-reality claims such as synthetic nutrients not being equivalent and ‘meat’ needs being scientific fact.

They violate the rules of this comm and you are overreaching by interfering.

All companion animals should recieve regular health checks by vets, and any major dietary changes should be done with medical oversight but that doesn’t mean it isn’t possible. Obviously a wfpbd will kill a cat, as the poster you censored pointed out. Your closeness is affecting your judgement here, and you cannot ‘own’ a sentient being.