That being said, it doesn't excuse its need to be filtered.
As many people in here have said numerous times already, NSFW is not about being 'bad'. It's about what's suitable for viewing in a casual every day environment in the public, or what's suitable for someone under 18 to be viewing. Even most porn websites still follow these rules and ask you if you're 18 before viewing. If porn creators are decent enough to do it, **why are we suddenly so special and exempt from the rules?
Now you're just taking one thing and making it about something else entirely unrelated to this discussion
This isn't about your beliefs in sexual or gender identities, this is about how much respect you have or don't have for your readers as well as the laws that are in place for these types of things. You realize that if NSFW rules are not abided by, Tapastic not only runs the risk of losing the privilege of their iOS app, but the site as well. They need to abide by the laws in this country that are kept in place for a reason, and so do we as creators. Just because we're on a website that we don't technically own, doesn't mean we get off scott-free.
It's not about people's opinions on sex, nor is it about their sexual preferences/identities, nor is it about anything else in between those things, so don't try and bend the reasoning behind NSFW to mean that.
I like this ^^^ I know I follow the same rule when it comes to swearing - more or less in public/discussions as well as comics: if it's something that would be bleeped-out on public cable television, prooobably should be censored or marked NSFW (especially if you feel the language is low brow for your comic, in the sense that language doesn't happen a lot and it might surprise your readers).