If people truly value the effort you put in and appreciate you making more content for them they can always subscribe to your Patreon and give you money directly. No need to go through a platform that uses advertising. And if the content can be freely distributed there is no need to go watch it on a platform where someone is leeching large amounts of money through advertising, unless the platform itself provides some actual value.

3D printers is a bad example by the way, as one of the most successful 3D printing companies works completely opensource: https://github.com/prusa3d

Why do people still pay them a large sum for their printer when they can build one themselves or buy a cheap clone off of Aliexpress?