backdraft7 - 5:37 pm on Apr 29, 2013 (gmt 0)
because it'll likely be forged, if it's not forged it'll be secondary name you'll have a tough time tracking down,
Google operates on many much, much worse assumptions to gauge the quality of our sites. If this one "fake" ID metric were employed, we could thin the herd fast! Seems like those who are opposed to this idea are folks who currently use private registrations on their sites or client sites. I think this one makes MUCH more sense than the EMD ding. Of course, that's because I'm stuck with 12 years of work under my own EMD. It's a LOT easier to fix a PRD than an EMD issue.
TOI - with all due respect, I have to disagree with your "nothing to do with PRD's". The PRD signature can be "assumed" to be a scraper, hiding his identity. Just like the EMD is already assumed to be a webspammer.
False positives abound in both cases.
If we discuss this openly and logically, perhaps some intrepid Googler will come by here, get the idea and have something to offer at the next "what do we update next" team meeting.