Sure, that's fine. I'm just expressing an opinion as this is not the first attempt I've seen of exploitation of popular hash tags. That earns mutes super fast, even for non-NSFW notes.
Discussion
The stated purpose of the grownostr hashtag was originally for posting content that is non-Bitcoin related, because Nostr was feeling like it was just a place to talk about Bitcoin.
If your client doesn't support filtering content that offends your sensibilities, you should try a different client. Most will either filter "sensitive content" by default, or at least give you a toggle.