The guts on the inside changed several times during that timespan.

Well, yes, it is a bit distressing that ill behaved crawlers are causing a lot of damage -- and collateral damage, too, when well-behaved bots get blocked.

Please read our email reply. I have no idea if we received your request —- your HN username doesn’t match any request we have received.

Oh, and thanks for letting me know that I need to add our reply to Wikipedia.

Did you see our reply? Edit: by which I mean, we sent you an email that explains what we did and how to verify it. Did you not receive an email reply? If not, please contact us again.

Also, if your site has CC-BY-NC-SA markings, we have preserved them.