Nope not related to John Steele of Pretenda fame. (One should go read the money laundering & hiding attempts recently made public after they failed to ask the court to keep documents sealed.)
See the trick is they offer to settle for $20, but you got a whole album so once they get you on the hook admitting "guilt" they then count up the other 14 tracks. So now that want $300, and you admitted you did it when you contacted them.
We have copyright law in the US. It tells them how to make the case, this is corporations shoving more corporate law into the system. ISPs will comply because they fear lawsuits (or are owned by media conglomerates). The problem is if you look at every single time anyone gave "rightsholders" more than the law requires, they abuse it. If they can't get their way, they file lawsuits for huge amounts of damages and hope they can run the target out of money. Expect to see them target a small ISP and try to bankrupt it to get their way. They will then parlay that "win" into pressure on slightly larger ISPs.
Copyright law in the US is screwed up. With everything that is happening and the explosion of Pretenda (and the forthcoming (fingers crossed) explosion of the multiple shell companys that are Guardulay (sp) which are actually fueling a huge number of copyright cases in the US it is going to reach the point where the law will have to be changed simply because courts will no longer accept these sorts of cases. It has been a ripe fertile field for abuse 4.4 million Prenda cleared in 1 year in CC transactions alone.
I still think RightsCorp is trying to inflate their "value" to get acquired by a larger firm. The history of every firm with a "magic solve it all bullet" is they make a splash and the owners cash out and move elsewhere.