I wouldn't list startssl certificates over letsencrypt as they aren't really free. I wonder how many of their free users actually paid the $25 to revoke their certificates after hearbleed.

https://www.startssl.com/Support?v=43

How is that related to client certificates?

Unfortunately for those of us who use TOR, SSL certs can only be granted to those who go through EV2 verification.... and pay $500/yr to DigiCert.

It's still a horrible situation, but has been made better for the general web thanks to the peoples at LetsEncrypt.