Blocklist/ permanent deletion for Addressbook?

[RedTheOG]

Whenever I delete certain entries from my Router address book they come back after a few days, presumably due to re-syncing with the address book subscriptions list. I know I could just export the hosts.txt into private but if a site goes offline it stays in private right? I like having an up-to-date list. Has there ever been any discussion of adding a feature to the I2P DNS to not only delete certain entries but to make such deletion persistent? I'm sure I'm not the only one to have noticed this.