They sue people for copyright violations they can’t even prove took place then settle out of court.
So, it seems good to me.
I used to work for a large cell phone provider. Our legal department had to deal with lawsuits from a company that did this:
They would reverse engineer our phones, find something somewhat unique about its design. they would then find out if that design feature was patented. If it was not, they would try to patent it. If they were granted a patent, they would then shake down my company for royalties for every phone produced or threaten to sue over patent infringement. I may not have it precisely right, but it was something like that. Really sleazy.