About Yahoo Answers Clone WordPress Themes here: http://wpbay.net/wp-premium-themes/wp-answers-theme/
These are the best 3 WordPress themes that allow you to build questions and answers website like Yahoo answers. These Yahoo answers clone themes offer all the well known features of the original website and since the system is WordPress they are easy to customize and your questions and answers website can be easily extended by using plugins. that is the reaon why they are better than a normal Yahoo answers clone script.
You can read more about these Yahoo answers clone WordPress themes here by checking the link above.