I already didn’t use them before Let’s Encrypt. They charge for revoking certificates. Even without HeartBleed happening this is such an insane policy that I just bought certificates for $10 with free unlimited reissues.
Where do you get your certs?
Now with https://letsencrypt.org/, before with https://www.namecheap.com/security/ssl-certificates/domain-validation.aspx (PositiveSSL).