Hi guys, Check this out, its quite interesting: http://fiverr.com/appthinker/promote-your-freeapp-by-giving-30-five-star-ratings-in-us-appstore
Ok so we know this is happening - and reviews can be entirely fake. So what is the point of the ratings system now?
In my experience, 30 ratings is not really enough to make a difference anyway. Add one or two zeroes behind that and it starts to be effective.