Nostr is open and public and everyone can do as they please, and build what they please, but we are still a community and act upon what we consider a bad practice. We, users, relays fight and block spam and illegal/unwanted content. If we as a community get to consensus that something like this is not desirable we can act. Relays can block, as users in this scenario there is much we can do, just make our voices heard, we can also fight back. And I will unleash hell if that bot keeps labeling my content.