I've been reviewing a few Suggested Edits this morning on SO and I've noticed that one guy has gone through a couple of answers involving "StartSSL", editing them to include:
Here is how to get a free SSL certificate with StartSSL: http://[user's own blog].org/2013/03/17/get-a-free-ssl-certificate-with-startssl/.
The blog in question does indeed feature a valid tutorial. Is this tolerated or should these edits be rejected? For now I've simply skipped them as I wasn't too sure.