This is ridiculous and somewhat irresponsible. This is just a list of domains using CloudFlare. The leak was only active under a set of very specific cases (email obfuscation, server-side excludes and automatic https rewrites).
Only a few hundred sites were leaking, sure, but the leaked info could have come from any domain that was being proxied by the same edge server. So we would do better to assume that any domain that uses Cloudflare could have had their passwords and other sensitive info exposed via leaky neighbors.
I question Pirates (https://github.com/pirate) motives for even doing this? Karma? Reputation?