See if you look at what they're doing, they're not actually trying to stem the flow of their "IP".
If their IP was valuable, or if they had a reasonable case, they'd take it to redhat, etc...
I mean if I invented something and someone big was selling the same thing.... and I had a case for it.... Why would I go after small potatoes Users rather than the big guy with $1billion dollars?
Unless my goal is to just extract small payments out of everyone because I know that I don't have a real case. Just be enough of a nuissance that people pay me to go away rather than fix the problem. I have no interest in fixing the problem, that doesn't benefit my wallet. Especially if the problem is trivial.
Where's the IBM suit? Oracle? Redhat? no, they could change things so that I wouldn't get my paychecks.
Why not at least tell people what's infringing so that I can be honest? Patents aren't secret anyways, so any patent I have is already public, but how I'm using them isn't. NDA's all around so that nobody ever knows and can't file a class-action for my security payments..
Pay me or I'll smash up your small bar.