Speedykillercat does not match any existing user name (W: 5d|S: 1d) Recently posted an article to the SCP-5247 slot. The article was first incomplete, then was revised to add more content, suggesting that the user utilized the main site to post a WIP draft.
When it started to accumulate downvotes, the user posted repeatedly in the discussion lamenting the downvotes.
User also posted several issues in the Wikidot feedback/bugs forum:
http://feedback.wikidot.com/wish:1096
http://feedback.wikidot.com/wish:1098
http://feedback.wikidot.com/bug:1413
http://feedback.wikidot.com/bug:1412
Finally, in their profile, they list their real name as "N*". While it is possible that this is a redacted version of their real name, there are also the same amount of characters "under" asterisks as the well-known slur.
All of this leads me to believe that this user is not of age to be a member of the wiki, thus I am recommending a year-long ban for being indistinguishable from underage.