New site member y tho (account age and site membership 69 days) has recently been making a mess in the forums that have necessitated staff step in to address their problematic posts:
http://www.scp-wiki.net/forum/t-5735877/wonderland-syndrome-warning-newbie-posting#post-3770483 (completely inaccurate backseat modding in Ideas and Brainstorming)
Don't post the article just the link to your sandbox.
http://www.scp-wiki.net/forum/t-5735743/unobservable-scp#post-3770438
IDK seems a bit short, but due to the nature of your SCP it's kind of hard to find any thing to add.
Maybe more test logs or SCP testing an SCP kind of thing(think 173 vs your SCP; what would happen)
http://www.scp-wiki.net/forum/t-5735037/the-singing-cave#post-3770201 (they didn't seem to understand how object classes work, so the author had to correct them)
This is my first critique in a while so here we go
First of all the containment procedures are a bit lacking in the way of protection and detail, maybe ad more than just sealing off the entrance like adding guards for example.
Second of all why is it keter? It doesn't sound very dangerous besides the people who worship it it's just a cave. Maybe take the people be from the cave and make them scp-xxxx-1 and make them anomalous in some way like they can become invisible in the cave or something. IDK if this would be tagged with compulsion but you might want to ask some one more experienced than me just to confirm if it would be. Scp with compulsion characteristics can be done they just are so common they are kind of an AVOID AT ALL COSTS kind of thing now.
C&D dropped and they've been PMed. Keep an eye on.