These guys suing Kickstarter makes about as much sense as Apple suing Wal-Mart for selling Samsung tablets and phones. Are we going to expect Wal-Mart, Best Buy and eBay to start doing patent checks on everything they put on their shelves or list on their site? If by some strange quirk this case moves forward with Kickstarter attached, that will be the legal expectation by precedent.
IANL, but in the complaint they may have already given Kickstarter cause to get removed. They mention Kickstarter's TOS and the judge should see that as a safe harbor establishment.