Take, for example, another (short-lived) attempt to exploit the law for unjustified gain: the (now amended) statute on false marking of patents.
I think most Americans think we should have more enforcement against criminals fraudulently claiming an item is patented when it is not. Civil enforcement of the law was starting to work, but the patent bar complained and congress acted within months to protect patent fraud perps.
Patent trolls aren't the main problem. A Sony, Microsoft or IBM at the door of an innovator is a much larger problem than a patent troll. Trolls mostly attack companies already profitable enough to put up a fight. The main problems are 1/ that the patent office hands out too many patents by an order of at east 10,000x, and 2/ there is not compulsory licensing at a reasonable rate. Both problems could easily be addressed, but we have serious regulatory capture going on in the patent industry. The USPTO today exists to benefit patent lawyers at the expense of all other industry. Since the greater economy is the last thing on most politicians' to do list I don't have much hope that the problem will be addressed anytime soon.