Please give me helpful feedback.
The addendum feels pointless, I mean it's kind of creepy but I don't care enough to really trigger an emotion. It does the plot-line of "object does this thing and just this thing. PLOTWIST! It's dangerous!" I'm not saying you can't do this plot-line, it's just that with this attempt that's all it is. No additional emotions, an SCP needs to be super interesting or trigger some significant emotion that makes us think and feel, the best scips do both of these.
E: added a collapsible, the post turned out to be bigger than I thought it would be.
I will adjust accordingly, as for the last word of advice, I will see what I can do about the grip of the overall SCP.
EDIT: Perhaps a Recovery log, or an interview with an affected subject?