On the subject of assets stuck in review...

Interesting situation. This needs to be investigated, because it is contrary to anything that I could think about. That would say that the asset stuck phenomena is inherently linked to the asset, and not to Adobe's moderation queue. Or having some curse on the asset depending on the pixels would be more than suspect. 

I have two theories for stuck assets.

The first one: Adobe has a nasty bug in their moderation queue. Why do I think that? well, it happened before, even 7 or six years before, that someones asset was stuck in the queue and a manual kick from an Adobe employee solved the issue. That wrere the good ols days where you did submit and in 24 hours you got accepted or refused. 

The second one: A moderator gets your asset to moderate,. then that moderator quits the job, his assets keep beieng stuck in the "getting moderated" state. With more moderators and more pressure on the moderators and much more assets, that should be much more frequent than in the past.

Interesting - I might try this in an image or two - I have some waiting since last June....

Interesting observations.  Personally, I have more or less given up trying to understand the logic behind how files are selected to be reviewed. Some go through fast, and  some linger.  Overall, I can't really complain.  I usually have in excess of 90% to 95% of what I submit accepted, some quickly and some not so quickly.  I just try to be patient and go on with life.   I think Adobe gets lots of submissions to its already huge inventory, and they probably don't need a lot of additional files to keep them selling tons and tons of stock images.