In the FAQ you can read this is only possible by PM’ing an admin or e-mailing the site with your request:
info [at] instructables.com
See the FAQ question: http://www.instructables.com/community/how-to-delete-instructable-account/
URLS:
http://www.instructables.com
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.
customer helpline phone number is +1 866 940 0005
Best information i have ever seen ;’l’;