Anyone got issues with this? In my opinion, there are some cases where it is a gray area: professional portfolio, case studies website with an email collection

Anyone got issues with this? In my opinion, there are some cases where it is a gray area: professional portfolio, case studies website with an email collection form, blog posts where you mention that you are a freelancer, a site where you link to your YouTube videos, some simple JavaScript app that don't require a backend but might make some money with ads... So I'm just wondering how often they strike down at people who operate in this gray area.