Ok, I'll make an exception because I haven't been adding new sites for a while. But you've really done a lot of extra work to show what's possible with jReviews and I am impressed

It would be great though, if you could explain which of the things that appear on your site are custom and which aren't, not to confuse users, and even better if you were able to write a tutorial on in tips & tricks on how to do one of them. For instance, how to get the stats of reviews based on a custom field value like you've done for reviews by age.
Thanks Alejandro for your encouragement! first I have to say jreview code design makes it very easy to add new functions on top of it..
here is how I did that,
first in community builder, add new column to store user metadata, like skin color, age etc
then upon user review submission, query that reviewer metadata from CB and store that with the review so that each review will associate with user metadata
during review listing, we just do a SQL query to get the count of each subgroup using "group by", then we feed the SQL result (count) data into a flash chart drawing program to create the chart.