I don't really see the issue here. You can choose in your profile what rating system to use -- integers only, integers and .5, integers and .2 and .5 and .7, or full on textbox -- and you are welcome when looking at other people's reviews to round their ratings to the nearest .0 or .5 or whatever you like. You may not believe in the difference between 8.2 and 8.3, and that's fine, but the fact that people use textbox rating in the first place indicates that they prefer the fuller range of options.