My account in the last 24 hours seems to have been put in some kind of Pinterest "jail". All of a sudden all of the searches I usually rank top for have disappeared from Pinterest, and my traffic has tanked too. I know many fellow Mediavine Publishers have the exact same problem at the moment, so maybe it's been some sort of a backend update from your side?
Yes! Fellow Mediavine Publisher here. The past few months, all my pins disappeared from searches.
If we only knew what we are doing wrong, so not get flagged as spam. I'm 100% sure no MV publisher ever posts spam on Pinterest.