I uploaded an image which complies with all acceptable posting guidelines, and tried to search it to see if anyone commented on it several hours later, but it was gone.

I never saw it get flagged, nor was I notified, so I don't even know why it was deleted. What gives?

To clarify, it was a stereogram edit of one of Karabiner's pictures.
Stereogram images exist on e621. Karabiner's images exist on e621.

I deleted it because it wasn't done well enough.
(Hair and chest have perspective errors on them.)

Oh, and it's normal that you didn't get notified when it got deleted, the sites doesn't do that.

Eh, looked fine to me. But I'm okay with it being hit for quality, since I didn't think it broke any content rules. Thanks.