Site member GTvsForza coldposted an SCP last month (text is in this sandbox and coldpost can be confirmed by revision 3341 to the Series III page). They then brought the sandbox to forums, here, made some edits, and then posted the same concept SCP to the mainsite today: http://www.scp-wiki.net/scp-2793
When called out on that, they replied: http://www.scp-wiki.net/forum/t-1611294/scp-2793#post-2461410
It was over a month and I did edits. I'll keep that tip in mind next time.
Forum Crit Team JS Mistbourne and I posted information on how the forums should be used.
Also, the user gave some somewhat-questionable vague (and potentially misleading, given the other replies to the thread) feedback: http://www.scp-wiki.net/forum/t-1590376/scp-2234-playing-murder#post-2461358
So, it's a toy knife that makes people act as if it were real. I like the idea of that. Maybe change a couple of grammar issues here and there, and maybe explain where this SCP came from and how it was contained.
Keep an eye on. Revoke if the behavior continues.