How many blocklists should the average public node operator apply?
There is:

- enable-dns-blocklist
- https://gui.xmr.pm/files/block.txt
- https://gui.xmr.pm/files/block_tor.txt
- https://paste.debian.net/hidden/359f2fb0 from [a random reddit post](https://www.reddit.com/r/Monero/comments/1g82047/malicious_node_ips_discovered/)

Let alone the fact that static blocklists are useless at best, overblocking at worst,
neither of them explains when they should be set or unset, who maintains them, how often or if they get updated or what they protect against.

If blocklist(s) are necessary or advisable there should be a clear policy and communication at least about the points mentioned above and only one trusted and reliable source for them.