http://xmrlist2ug5ypisuhsvsi2req4bc3uiv3nc24yzibbaztslqprchvcad.onion/add-node
And, don't forget to use --enable-dns-blocklist flag (or enable-dns-blocklist=1 if using config file) when starting monerod 👌. As an administrator of this instance, I have full rights to delete, and blacklist any submitted node with or without providing any reason.