I've come across that term once. It was from an article. And the term is somewhat like "Collective" or "Crowd" + some other words.
Basically, a problem that you are trying to solve is already solved by others. Just that the solver isn't aware of the solution existed.
I've read through the following thread, but I still can't find the word I am working for. I will be much appreciated if anyone can help me find the answer. Thanks.