It appears to be affecting other users as well.
Often a problem for me.
I tried to list a keyboard around noon a few days ago. After supper that evening, it was still not approved, although numerous others had been. I gave up and put it up on ebay, where it sold in about 4 hours after 8 views.
If there is some silly technicality, such as the lack of some sort of ID paper in the item photo, or a missing [FS] tag at the beginning of the title, it would be better if a moderator would send a message to that effect.
It has been my experience that, at best, a moderator might leave a note in the thread (still not approved) itself, or, more often, simply ignore it altogether.
It feels like a seller is "guilty until proven innocent" in the current setup.