How would that change make it any more difficult for a little guy to sue a big corporation? I think you have missed the part of within reason, Microsoft wouldn't be able to put an individual on the hook for all of their court fees just those that a judge deems valid to pay for the suit. This change would make the patent holder vet the validity of their patent before they can automatically sue, which is the goal we are looking for. A defendant would only exercise the option if they believed the claim to be frivolous for fear of losing in court. For legitimate cases the parties either go to court or settle.