That answer is unfortunately irrelevant to a lot of business models, and sometimes part of it. E.g., Pinterest (and many others) making use of their site frustr

That answer is unfortunately irrelevant to a lot of business models, and sometimes part of it. E.g., Pinterest (and many others) making use of their site frustrating if you don't submit and make an account, while being hard to avoid if you search for certain types of images. (Another example I ran into was Instructables (this one specifically: https://www.instructables.com/DIY-REFLOW-OVEN/ https://www.instructables.com/DIY-REFLOW-OVEN/), where you can see and enlarge four photos submitted by people who followed the instructions, but have to create an account for the remaining two.)