If you follow through with your decision to delete your Pinterest account, please write to Pinterest staff, CEO, etc., to let them know exactly why you will no longer give them business.
By being very loud for a long time, the left has successfully convinced many companies that the majority of the country is lunatic leftist, while the silence of people on the right reinforce that view. It is time to fight back and let those companies know that there are lots of non-insane people out there.
I will definitely do so!