I often find that a search for a given term will return hundreds of “re-pins” from morons posting the same photo (or topic) over and over again.
I am almost to the point of creating a plug-in that automatically removes Pinterest from ALL internet searches, but for now I end up just typing “-site:pinterest.com” at the end of just about every search I make on Google.
However, even this will allow Pinterest in OTHER COUNTRIES to ruin your search, so the better search modifier would actually be: -site:pinterest.* (note the wildcard asterisk). Thanks for suggesting, Lea!
Hope this helps someone else out there with their frustration of Pinterest littering their search returns with useless garbage.