Hetzner is a long-running social experiment to frustrate other Internet network administrators trying to hail it on all frequencies, so that sort of thing doesn't surprise me. We should all be better actors on the Internet, as this thread underscores, and it's just too bad you sound like you're wearing a sandwich board when you advocate for it. The incentives don't line up with running a business, much like with IPv6 and BCP38.

It'd be cool if we could throw RADb, PeeringDB, RFC 2142 contacts, WHOIS data, the routing table, courtesy phones, spam blacklists, and all the other tools available to administrators in a blender and come up with a nice, centralized way to instant message the right person with root at another Internet company for any possible scenario from any possible identifiable resource involved in the Internet without having to possess the tribal knowledge you pick up after doing it a while. Such a facility doesn't line up with the decentralized nature of the Internet, which is why I think it hasn't happened yet. How would you talk people into using it, too? There's a critical mass problem. I've always wanted to build exactly that thing, but I fear nobody would use it.

Until that exists, it's important to watch your abuse mailboxes. Only point I'm making. The Internet moves fast.