Personal or Business - Pinterest?

Hi, does it matter in terms of engagement if I have a personal account or business account? Can the people know that I'm using a business account?

I heard that personal account gets a lot more engagement than business account?

Also this profile https://imgur.com/a/nwvX8vC have 55k followers but 4.3 monthly viewers? Can it be true? And I checked the website on similar web and it did not have any stats. Does that mean the website barely gets clicked?

It's 4.3 millions, not 4.3 monthly viewers.