Same here. When I think about the bots it's mainly about possible future issues.

At the moment it would be a very inexpensive and simple way to attack nostr.

In fact I think that's a large part of why we are not ready for any serious adoption.  

 Wen bot killing Ai for relays? 

 Maybe the #wot collaborative filtering could be more curating a blacklist instead of only white listing. New accounts would get a chance as long as as they are not muted by more than three trusted npubs.