::cough:: isn't that an oxymoron?
It can be. Just saying that its obvious by the inclusion of a reduced dollar amount attached to a letter sent prior to suite being filed (with language that states that there will be no suite filed if they pay) that this has become a profit center for them instead of IP defense mechanism. In reality even if they didn't want to take these to court they should be filing suites anyways and settling even at that dollar amount out of court. The problem here and I think a lot of people miss, is that its in their best interest to have a case be filed before settling because it protects them from having the case being opened anyways.
In theory the RIAA could file a case against any of the litigants that have paid already because these extortion based payments didn't happen within the eyes of the court system and it could be just as much up to the defendants to prove that they paid the RIAA and that those payments were for the infringements that the RIAA filed the case for.