I had collected what was probably thousands of pins over the years with hundreds of followers. I loved pinterest! Then, I decided to organize my pins using the new sub-boards. I also upgraded my account to a business account. I was copying pins to sub-boards with the intent of removing the old ones, and Pinterest closed my account... with NO warning. The only explanation I received was that most of my pins were spam (not true at all) or that I posted something inappropriately. Vague responses, no warning, and all is lost.