Reviews: Suggestion to increase the increase the relevance of reviews

I think the reviews  would be more useful if we knew the age and sex of the writer.
A movie that gets 10/10 from a teenage female,
might not be enjoyed by a 65 year old male (me fir instance).
by Paul Richardson
Joined on December 5, 2017
https://getsatisfaction.com/imdb/people/paul_richardson_5jexb7hx2g149
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reviewers could add "I reviewed this movie when I was 15 years old" ??
too young to register at IMDb ??

Users / reviewers could post Birthdate on their Profile page ?? 

bob the moo
member since February 2001
Deebers with 500+ user comments:
http://www.freewebs.com/bobthemoo/
(list no longer kept up-to-date....sorry)

http://www.imdb.com/user/ur1002035/
http://www.imdb.com/user/ur1002035/comments-index : 8,771 reviews

TheLittleSongbird
IMDb member since January 2009
My name is Bethany, and I'm 24 years old.
I live in England, United Kingdom, and I was born on 28th April, 1992.
http://www.imdb.com/user/ur20552756/
http://www.imdb.com/user/ur20552756/comments-index : 11,719 reviews
http://www.imdb.com/user/ur20552756/ratings : 11,704 titles

bkoganbing
IMDb member since June 2003
http://www.imdb.com/user/ur2483625/
http://www.imdb.com/user/ur2483625/comments-index : 13,966 reviews

MartinHafer
IMDb member since June 2003
http://www.imdb.com/user/ur2467618/
http://www.imdb.com/user/ur2467618/comments-index : 21,472 reviews
http://www.imdb.com/user/ur2467618/ratings : 21,210 titles