Perhaps I am too much of a "normal" but the phrase "SaaS Achievement Engine" sounds like that specific type of tech-marketing-speak that will be unappealing to site owners because they will be too bashful to admit that they have no idea what it actually means. I have no such hangups.

Second comment is that I think incentive systems are highly highly tied - almost inextricably so - with the content and community around each individual site. In order for a reward system to work correctly, it has to be based on existing user behavior. For site owners who know this, they'll probably want to structure the system themselves. For site/app owners who don't, how will you sell them on the idea that incentive systems are important to begin with? I think the market you're dealing with right now is people who understand the importance of incentive systems but don't know or are too lazy/busy to make one themselves. If you believe this market is large enough, you should go for it.