reality check from bluseky and Nostr perspectives
While these may be somewhat useful, they're not significant enough examples in the broader space to provide the sort of data, evidence, support (or lack thereof) which I think you might be looking for....
Widely-adopted semantic vocabularies are usually refined by a small group of experts until a rough consensus is reached. This approach can be seen in contra-distinction to tags. Tags also provide meaning to data, but they are formed organically by a large group of people generating a large number of tags; tagging trends then emerge over time and provide context for information.
I wonder how this relates to Nostr
Nostr is a simple, open protocol that enables global, decentralized, and censorship-resistant social media.
Peter Kominski likes this generally.