I agree that it would be nice to get 'real' number on this, rather than relying solely on empirical evidence. But given the nature of it, I don't see how that's possible.

When I mentioned other stories and comments, I wasn't only referring to those by people with "notoriety or the ability to get noticed" - indeed, I was mainly referring to randoms (such as myself, and BTW I have no notoriety and am an introvert).