I want to say yes. Although the websites I find consistently say that “bunny” refers to the rabbit (rabbit ≠ hare for the uninitiated, they are different species), they do have similar behaviors and looks. And this is not strictly a pet rabbit community, so the fact that hares are very hard to domesticate doesn’t really impact what gets posted here.

However, I also think the input of people in the community is important. If people who browse and/or post on !bunnies@lemmy.world don’t want hare content included then I’m not going to make the change and allow hare content.