Bambulab is the perfect example of a dipshit company taking all the openly available prior art and then trying to privatize the shit out of it, making random patents around it to stop anyone else from competing when they couldn't exist without the previously existing open ecosystem.
They are now suing someone for the crime of forking an AGPL project
It's really a systemic issue, because the patent system's exclusive purpose is enforcing monopolies and it never helps actual innovators unlike its stated goal. And intellectual property law is a scourge on society.
I will however also blame everyone who kept buying bambulab printers after it was clear they will pull as much anticonsumer anticompetitive bullshit as they can get away with. The locked down firmware scandal should have been enough to never buy anything from that company. Instead they're thriving while burning down the ecosystem that allowed them to come into existence. And consumers give zero fucks about it despite alternatives existing.
If it's fine to shit on tesla owners for ignoring what elon musk has been doing with the profits from the company, I think it's only fair to apply the same logic to 3d printers where bambulab is suing out of existence the people that made this tech accessible for hobbyists in the first place.