Step 3 - Now that you have a new browser, Navigate directly to Pinterest and log in with your credentials or create a new account if you don't have a second account yet.
This way your current Pinterest account will not open by default and you will be able to create a new one or sign in to a different account as you wish.
Repeat steps 1 to 3 as often as you need. You can create a new profile/person in Chrome for each of your Pinterest accounts.
Once you have created the other "person" on chrome, you will see an icon diofferent from the one you usually see.
Make sure to save a shortcut on your desktop (This is for windows users) in my case I chose the cat and now if I want to log on to my other pinterest account I use the chrome Icon that has a cat on it:
Each time, navigate directly to Pinterest and log in to your "other" account.
It is certainly a clever trick but for me not usable. Pinterest was going very nicely in the beginning, climbing up and all that.
Slowly but surely I reached 69.9k to then start falling back and land on 19k. I signed up with them with a business account in Feb. this year and really got the impression it was good for my websites. I put all my posts on pins and also make other pins with private photos. I do not know why this has happened but will continue as usual. I do not think I will ever need more than 1 account with them.
Greetings from the south of Spain, Taetske