Be logged in, use the deletion link. As stated there, everything will be irreversibly deleted. Sounds neat.
URLS:
http://www.markosweb.com/
http://www.markosweb.com/profile/remove/
Please note that AccountKiller.com is not associated with the business listed on this page. AccountKiller provides easy-to-understand instructions and guides on how to cancel charges and relationships from the list of businesses on our site, we have no affiliation with these businesses.