Re: 1, legally speaking, GPL does virtually nothing to prevent an ML model more than, say, MIT. It's a problem for all FOSS licenses. FSF/GPL really don't represent all of FOSS. As someone else noted, GPL is the 3rd most popular FOSS license. I'd add -- for a reason.
Re: 2, I know less about this, but from what I do know, legally speaking, this seems like a trademark problem, not a copyright or license issue.
I'm saying, in some sense, you've already won. If you want to fight about trademarks and other IP, God bless, please do. Just please don't think adopting the most extreme position re: your license choice endows you with some heightened dignity over someone who just made a different choice.
Re: 2, I know less about this, but from what I do know, legally speaking, this seems like a trademark problem, not a copyright or license issue.
I'm saying, in some sense, you've already won. If you want to fight about trademarks and other IP, God bless, please do. Just please don't think adopting the most extreme position re: your license choice endows you with some heightened dignity over someone who just made a different choice.