There's nothing NANOG can do about your problem, or about the fact that
this is the new 1996 style screw-your-neighbor Internet. It's not that
I'm unsympathetic -- I blackholed the fools at IQ-INTERNET in the first
10 minutes of their spam, as did the folks who take my blackhole feed.
As I see it you have two choices. You can route them to hell and get on
with something that matters more to you than IQ-INTERNET (I'm sure your
to-do list is as long as mine.) Or you can file lawsuits or take some
other non-Internet action against IQ-INTERNET. Either way, NANOG does
not need to know.