Yeah it's interesting to look at this in the context of legacy social media: Facebook and X literally *can't* interoperate, not necessarily on any technical level -- although as these platforms are constantly introducing and taking away new features that becomes fraught -- but because of legal and fiduciary issues. Meanwhile, I think there are certain common "nouns and verbs" to microblogging social media that at least allow for some "floor" of interoperability -- posts, likes, comments, reacts, boosts, quotes, etc -- these things in their basic form are pretty universal. Obviously Zaps aren't going anywhere outside of Nostr, but signalling an "intention to Zap" could be a powerful way to attract people to the network.