User deku_link has made a series of unhelpful posts in the forums:
http://www.scp-wiki.net/forum/t-1156520/sky-whales#post-2257556
Going off-topic in someone's draft thread to talk about a LoZ game. Staffposted by me.
http://www.scp-wiki.net/forum/t-1156001/spc-xxxx#post-2257443
Short critique with comments "I take it English isn't your first language" and "Also, there's a nifty little key on the keyboard called a shift key. Please use it." Staffposted by me, with cease-and-desist message.
http://www.scp-wiki.net/forum/t-1155636/mr-mayo#post-2256880
Contained phrase "English mothahubbard, do you speak it?" Staffposted by me, phrase later edited over.
http://www.scp-wiki.net/forum/t-1035095/the-lovebug#post-2123847
Misleading critique, among other things stating that tone was good when it wasn't. Staffposted by Devereaux.
PMed about the cease-and-desist. 24-hour ban on next infraction.
Edit: Also, they've edited someone elses sandbox: http://scpsandbox2.wikidot.com/jtc888