And you could say "Well all displays of affection should be CW" but given the queer leanings of a large number of Mastodon users, and the commonplace display of heterosexual affection in all media, that feels...off.
I guess this is a long way of saying that you can CW what you like, but I'm just not okay with hiding my sexuality and/or status as a furry on an instance that is supposed to serve an a safe, open place.
Speaking of that, I live in an area of the country that up until only a few years ago it was very common for local TV stations to edit out scenes of non-hetero displays of affection in TV shows.
This instance is focused around the furry community, and is open to anyone interested in it. It was created by @Tiwy57 originally for a small group of furry friends, but thought it might as well be open to all fluffies and scalies !