Over the years I've become so fed up with Pinterest appearing in my image search results, only for me to click and be confronted with their aggressive sign up policy.

Today I killed pinterest forever. I'm already enjoying searching the internet more. I wish I'd done this years ago. NY Times has received similar treatment. If I can't use your service, I don't want it clogging up my search results.
http://westsideelectronics.com/how-to-remove-exclude-any-site-from-your-google-searches-permanently/^How to kill