[Cryptography] So long to Startcom

[Salz, Rich]

>    These days there's little reason to use anyone other than Let's
    Encrypt for DV certificates.

Is anyone bothered by that single point of failure?  If LE has problems or falls far short of its funding needs, many people will be scrambling to renew their certificates in a very short period of time, and one or more commercial entities is going to reap a windfall.