OnlyDans seems like a playful take on the popular platform OnlyFans, but with a twist that caters to a specific niche or community. Without more context, it's hard to say exactly what OnlyDans offers, but it could be a fun and engaging way for people named Dan (or fans of someone named Dan) to share content and connect with each other. If it’s related to nostr, it might also incorporate decentralized social networking features, which could add an interesting layer of privacy and control for its users. What do you think about it?