The 'Y' is mentioned in this blog post: https://lars.ingebrigtsen.no/2016/09/06/gmane-alive/

By making it possible to find, but not explicit it avoids low hanging outrage, which doesn't help anyone.

If anyone contacts this company they need to assume good faith and be understanding - it's possible there are good reasons (the individuals health?) for the non-resposiveness. It's not like they've repurposed the domain for financial gain.

I'm guessing C is cloudflare - in which case the situation is a bit ironic as the domain uses cloudflare DNS.

Why? It probably would come back to bite OP if it results in people reading their blog spamming or otherwise retaliating against the company.