It could have been a bot someone had setup to scam people out of zaps. My assumption is a copy paste of twitter similar to what nostr:npub1z7eqn5603ltuxr77w70t3sasep8hyngzr6lxqpa9hfcqjwe9wmdqhw0qhv seems to do.
Discussion
That's a good theory, and I don't rule that out either. It might even be more probable. Here's a screenshot of a DM I had a while back with this newest " nostr:npub1axu67906kw0zyj9z6hzv5x4uqzh4e5xtp9rr7ml4mrujmy3wrk3sehyh58":
