ok, I am going to throw a spanner in the works now
A lot of people use the internet anonymously or people aren't always, shall we say, truthful on forums.
Some people will also feel uncomfortable giving out information about their age and/or profession, and even their location for reasons that aren't the business of anyone but themselves.
I'm sure the WAB survey will receive a lot of input, but let's not forget, this is a public forum, which can be read by anyone.
(sits back and waits....)