In general, content will be permitted unless the problem it creates is not surmountable through response from the community.
Accounts will be suspended for bullying other users, hostile bigotry that would make groups of people feel unwelcome, and egregious spamming.
Pornography and graphic violence must be put behind a content warning.
Regarding the theme of this instance, there will be no special rules regarding animals or veganism, both in terms of who may join the instance or what they post. There are other vegan-related instances available for those who want such rules in place.
These rules are subject to change if they are found to be inadequate for preventing problems.