I guess the only data they have is your request per ip, but not necessary know your npub.
Probably the only harm I see is data collection.
But direct harm, they cannot do, because you load no image ...
But this means, you could in theory crawl relays, for finding traces for other relays, to discover content for your nos-fluencers.
So in theory, your nos-fluencer can disappear from big relays, but if you can discover new relays through your known relays, you could find content on a nos-web corner that you did not know existed, and does not have to care, because you only "load" or use notes whose npub you trust.
So in theory, your nos-fluencer can disappear from big relays, but if you can discover new relays through your known relays, you could find content on a nos-web corner that you did not know existed, and does not have to care, because you only "load" or use notes whose npub you trust.