Remove Wiktionary account Completely

 

 Wiktionary is a multilingual, web-based project to create a free content dictionary of all words in all languages. It is collaboratively edited via a wiki, and its name is a blend of the words wiki and dictionary. It is available in 172 languages and in Simple English. Like its sister project Wikipedia, Wiktionary is run by the Wikimedia Foundation, and is written collaboratively by volunteers, dubbed "Wiktionarians". Its wiki software, MediaWiki, allows almost anyone with access to the website to create and edit entries.

How to remove Wiktionary account

Due to the fact that you do not need to provide any personal information, and Wiktionary/Wikipedia needs to track who made what changes, the site is not on the black list.
Nevertheless, if you still fear your privacy: you cannot delete your account – only change your login. See http://en.wikipedia.org/wiki/Wikipedia:FAQ#How_do_I_change_my_username.2Fdelete_my_account.3F