User Dr Beyer (W: 66d| S: 1d) has posted, in quick succession, three different borderline spam replies on someone else's Ideas Critique forum post: http://scp-wiki.wikidot.com/forum/t-13990835/my-first-scp-idea#post-4889579
Followed by posting twice in someone else's thread in the Question's Desk forum: http://scp-wiki.wikidot.com/forum/t-13992979/why-can-t-i-use-sandbox
This was followed by creating a new thread to ask how the sandbox works: http://scp-wiki.wikidot.com/forum/t-13993234/why-can-t-i-use-sand-box#post-4889605
I would suggest a warning PM telling 'em to take it slow and read how the site works themselves.