Does anybody know if GoDaddy uses the same ID for the same bidder for each auction?
Ebay has another interesting way - the user ID made unrecognizable by starts. They've been doing this for a long time.
For me personally, privacy is a big topic. The fact that we can assume that we don't have any (or not much) is for me a big driving factor in putting an emphasis on privacy and try to make it a conscious decision when I give it up. For me whois should have never been public to start with for example.
Again - that's me personally, not on behalf of WHC or anything. I also like to look at data, though ;-)
[added stuff ;-)]