Scroll down on the given page. There you can ‘close’ = deactivate your account, but not delete it. No clarity about deletion = no spot on the white list, sorry. If you don’t see the ‘close’ link, or want more info, read: http://www.etsy.com/help/article/53?ref=help_search_result
If deactivation is not enough for you, you could try and request deletion: http://www.etsy.com/help/contact (select Member Privacy for topic), or at least anonymise your account, then deactivate.