Typically your first step in avoiding things like this is don’t be important. Your second is don’t record everything and share it. If you do have to share it, wait until long after you leave the place you recorded it.

I thought about that the other day, I never had a Digg account but I was on that site all the time. Stumbleupon was just a browser extension, most of those links are probably dead forever, and they for sure didnt expect you to make an account. Everything gets worse when people start milking the money out of it.