I also deleted my account and encouraged others to do so. I'd love to see their account metrics and to know whether the reason for the decision reversal was primarily driven by individual email responses, HN/reddit outrage, or mass account deletion.
He originally said they got around 2000 deletion requests since sending out the original message. That comment appears to be gone from this page now, but another commenter concurs with my recollection.
It's hard to gauge significance without knowing a number of total users, but I imagine it is a relatively strong hypothesis that there is significant correlation between regular browsing of HN and having an account on his service.
