Project creators are the ones that are 100% responsible to fulfill their promises and their deadlines. FundYourselfNow is not responsible if any of the project owners doesn't achieve their goals.
What our FYN team can do and we do, is to set different milestones and make the crowdsale funds available only when certain goals and milestones are achieved. If a project fails to deliver on time a milestone, the backers have the right to vote and freeze the funds. This will postpone the funds release until the project owners deliver the required features. In extreme cases, backers can vote to get a refund of the remaining funds.