I just edited a previously empty tag Wiki and put a good deal of effort into writing a decent description, providing an example etc. in a reasonable length. I saved it, got the usual "Thanks for the edit, we will review it" message and then waited for a while but nothing happened. When I returned to the tag Wiki later my text had completely disappeared. Now I'm just wondering what happened there? I'm sure what was written was not wrong and it certainly was an improvement (given that this tag had been empty before), so I asked myself if this is a bug of some sort?
I recently reviewed several tag wikis and wiki excerpts that you proposed. Some I accepted, others I accepted with edits, and a few others--including one long one--I declined. In all cases I provided explicit reasons. Thus, if there is any bug here it would be that those reasons were not communicated back to you by the system.
To hunt down what's going on, I looked at your recent user activity (available on your profile page) and linked through the "suggested edit" links. That brought me to pages like the one at https://stats.stackexchange.com/review/suggested-edits/24893, where at the top my response is prominently highlighted:
Rejected 24 mins ago:
whuber♦ reviewed this 24 mins ago: Reject
This text goes well beyond what would be needed in a wiki: consider posing a question that it would answer and then post this as an answer.
Therefore it appears that all is working, although it seems like the system for providing feedback for rejected edits could be streamlined.
Incidentally, the suggested edit is still visible at https://stats.stackexchange.com/review/suggested-edits/24893.