How do you IP address block someone from Yahoo Answers? or at least get this kid locked up?

Goto to the main yahoo page. Not your my yahoo page but the regular page. At the very bottom click on the copyright/IP policy. That will take you to a page to report them. Remember also? Save all the messages or anything in text and forward that to Yahoo. Also a neat trick is when the abuse starts? look at your time on the computer and include that. It can help yahoo when they look at there log files.