I find hashtags the most useful way to find folks of similar interests (#artstr #photography etc), and as a way of showing the variety of notes and folks here.

As a way of show the huge community aspect of Nostr (as I’ve gotten so much help from it myself) - the #asknostr hashtag …. Which doesn’t really exist on other social media platforms; they have their company customer support, but not a way to ask across the board for help from the actual folks using the platform.