Wikimedia DC has an SSL certificate from Gandi. Jeremyb knows more about it.
Since we own it, why not use it? I am mostly interested in using it for Stripe payment processing, which will handle the actual payment processing (including PCI compliance) as long as we use SSL on our end. But there are other uses, such as having login / logged in users handled by HTTPS, like with Wikimedia projects. Thoughts?
[Update] In light of recent events (e.g. https://blog.mozilla.org/security/2015/04/30/deprecating-non-secure-http/) I am suggesting that we use HTTPS for all of Wikimedia DC's web properties. I am also bumping this up to High priority