They just cooperate with whatever law firms there are locally and pay them in % of what they get, which also makes sure they are incentivized to get as much as possible to pay.
You do not have to respond to any invoice you get. And of course that tends to end up in court. What makes you think you could win the case? Just that perhaps they did not actually have the rights in the first place and thus it does not go any further than some letters? How often does that happen? 1 % of all such cases? Do you have the number?
I think you massively underestimate how much money you can make with cease and desist cases. And how little it costs to send letters in bulk to people it could apply to.
Ensuring those who choose to bathe in AI slop will never be washed clean.
Stop antagonizing a huge part of the population, let alone damning them for the rest of time. They are the problem in the same sense that a car accident is caused by driving cars, but when the actual reason is the freaking monster truck driving across all lanes, you need to phrase things a tiny bit different.
That was never and is still not possible.