People just like sharing their npubs for some reason. It’s fine for sharing on other socials, but I usually post njump links. Cause then people can just click it and then choose to hop into whatever Nostr client they want. No need for any copy pasta.

https://njump.me/npub1k763esjjzm2vzz7gtt38q4wf49zlua72l4rreu3myzghuwwwdqtq2mcg5x