Can we have a detailed ratings system like IMDB which is broken by age group and sex. I think it'll save many from the pain of even trying a genre out of their comfort zones.

Examples of how this may benefit someone:

Something that can be enjoyed by both males and females of all ages:

A theory of everything:
http://www.imdb.com/title/tt2980516/ratings?ref_=tt_ov_rt

Then you run into something with super skewed ratings with a lot of 1 and 10 rating:

50 shades...
http://www.imdb.com/title/tt2322441/ratings-all

If you are a woman it's either you'll hate it or you'll love it since you get something like this:
http://www.imdb.com/title/tt2322441/ratings-female

Buy if you're a man, the ratings will tell you avoid with your life:
http://www.imdb.com/title/tt2322441/ratings-male

sorry I can't remember a better example but I hope you get my point.