Why do you think CryptoSeal failed? What are some lessons learned from running a YC startup for the past 3 years? It would be very interesting to see a postmortem.
I wouldn't say it failed -- we never got Internet-scale customerbase, but honestly the goal was "do awesome security stuff" more so than "become Facebook".
I'm actually writing the post for Saturday; CloudFlare has a bunch of stuff going on this week so I've been pretty busy on top of getting some odds and ends resolved for this announcement.
