The Monero Research Lab (MRL) has decided to recommend that all Monero node operators enable a ban list
https://github.com/Boog900/monero-ban-list/blob/main/ban_list.txt
- Download the ban list and:
./monerod --ban-list <file-path-to-ban-list>
🧐 https://gist.github.com/Rucknium/76edd249c363b9ecf2517db4fab42e88
yes the overall transaction is safe but the individual node sending that transaction/block is recorded with the IP logged. Mass collection with a large spy network would easily enable a semi reliable initiator logging system that could be used later for any purpose. You could connect to a public node to hide and not send from personal node but then again the public node itself could be a spy node too. Its all about collecting general metadata for use with other data to be cross examined when the time is needed.
Well, the concept of a ban list seems ripe for abuse. We have to trust someone to tell us canonically who the bad nodes are, people can slap a fed honeypot node label on you for not going along with something.
What we need to do is design the system such that a bad node can do nothing but participate in the network. Just like the mining incentive structure with nakamoto consensus. Dandelion++ is supposed to do that, at least for everyone broadcasting their transactions only to initial nodes they know and trust. I don’t know how to do that, but a blacklist is a dangerous stopgap.