To be honest, a lot of people underrate pinterest too much. I used to think it's only meant for wedding pictures and home decoration until somebody showed me the analytics. You could gain huge traffic there if your niche fit the platform. The thing is that it is very slow, thats all. You could post today and it could take months for it to gain traffic. It's weird but that's the truth. Someone who is selling fashion, digital products or home items will gain a lot from the platform. But once the pins start ranking, it works quietly without all the daily social media issues.