Spend 30 seconds googling to find reams of UX research that says most users don't read. Actually, I'll do it for you.
http://www.nngroup.com/articles/how-users-read-on-the-web/ http://uxmyths.com/post/647473628/myth-people-read-on-the-we... http://www.codinghorror.com/blog/2009/10/treating-user-myopi...