You will be able to design rating templates where the things being rated is a piece of data, and the fields are whatever serves your purpose. Maybe the rating template is a flag that the data is true or false, or is (or is not) NSFW, or is / is not supported by randomized clinical trial data, etc. And you could attach a confidence rating so you can indicate how sure you are of your rating. And a comments field, if you like. And if the community likes your template and it gets a lot of use, the Grapevine will be able to compute weighted average scores, where the weight of each rating depends on the influence score of the rater in the appropriate context.