NIP-3 OTS attestations dont really solve this issue.

I no longer use kind 3 as a follow list because of these risks, and instead spread across NIP-51 follow sets (kind 30000). Its more flexible but can suffer similar fate just at a smaller scale.

Ive considered NIP 81 relationships hut this is bigger engineering challenge for clients to adopt fully (AFAIK, Corny Chat is the only client using for petname assignments)