Very interesting and well written article. Thanks for posting. I do use geo-blocking for SH, ZA, CN, IR, MY, KP, SA, SY, YE, & RU. But I don't think LE has servers there. Additionally, I subscribe to a number of IP blacklist feeds, and have 15,000 or so IPs that my servers have logged suspect traffic from. I am aware that LE does not publish a list of IPs/FQDNs that I can whitelist.
