This is the emails between the YouTuber YGK3D and Anycubic, it seems like they won’t send 3D printers to reviewers who mention their GPL3 license violations.
tl;dr Anycubic uses open-source software for their firmware, but doesn’t make it public as per license agreement, and they don’t seem to be friendly to anyone who calls this out.
More info: https://www.youtube.com/post/UgkxIMpZTkXqFo0H6pDwhZpdYqMYvLhPvWA5?lc=UgxA-4LYvwrnonXuXsZ4AaABAg
It’s true of anything reviewed on YouTube. Alex on Autos did a whole video mansplaining why he never mentions poor build quality and reliability of certain brands and basically gaslights his audience.
If he did, he would never get cars to review, so let’s count cup holders.
You can always get a car to review from a dealership or borrow one. But it’s quite hard when you’re just starting out in the business.