You clearly don't understand how much people hate patent trolls and software patents in general. It's all a cruel joke, and getting paid some token sum of money to invalidate a bunch of worthless patents is just a nice bonus. You wouldn't do it for free because generating these patents is your job.
You are mistaken. I'm a former patent examiner as pointed out in the third word of my first comment here. So I have no conflict of interest. And I think I have a solid understanding of how much people hate patent trolls and software patents in general, which is why I added the qualifier about how I know my comment would be unpopular in some other comments here.
Conflicts of interest don't really work like that. You are a patent examiner even after you stop working as one, and for as long as your loyalties and ideas remain with your former job.