Okay cool, I am wondering if there are any more similar to purplepag.es that only handle kind 0 and 10002. Haven't heard of any yet.

Also, NIP-65 mentions in point 5 of the Final Considerations: "If a relay signals support for this NIP in their NIP-11 document that means they're willing to accept kind 10002 events from a broad range of users, not only their paying customers or whitelisted group."

This could open a relay up to a DoS where the hardrive fills up with noise generated as quickly as npubs can be generated and bandwidth is able to transmit. There is a case, I think, when signalling NIP-65 support only for paying customers (and perhaps also their network) is desired. However, I am not certain how NIP-11 documents are currently utilized.