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


Prusa printers are good but there’s rumblings about prusa entering his villain era. Voron printers are complicated but great since you get to learn a lot by building your own machine.
Oh no, what rumblings would that be? Prusa has always been a ray of hope…
More and more of their stuff is not open source and there’s some questionable Israeli suppliers.
Jebus, fantastic.