Digital Trends: Pinterest Becoming An Online Spam Board? Here’s How To Block Someone On Pinterest. “Spam killing your online mood board? While Pinterest profiles are all public, users can choose to block pinners to prevent messages, likes, and comments on their own Pins. The feature has been available since 2012, and gives users a way to block spammers and negative commenters alike; it also allows you to keep other users from interacting with your pins for whatever reason. If you’re unclear on how to use the feature, however, we’ve put together a guide on how to block someone on Pinterest, along with a more comprehensive guide on how to use Pinterest.” I thought this was interesting on its own because I didn’t know things had gotten to the point where you need to block people on Pinterest. But pair it with this article about Pinterest and Google’s organic results and it gets even more interesting.