Nostr is going to have to invent social norms around zapping to some degree. Obviously it’s down to individuals but every culture has norms that most individuals agree with and uphold.
I unfollowed an account just reposting tweets - that’s a bot not adding anything to nostr, freeriding off the userbase.
I follow bots like conxole and remindme that do explicit tasks for users - no issue with them and have zapped owners for making them.
Think the https://verifiedhuman.net project is going to be of major importance to allow nostr to grow and ensure it isn’t overtaken by bots. Bots could be an immense force for good with Lightning available but they need to be supplementary to humans, not here in their stead.