You do have some walls that were accepted and IMO I've seen better (just my personal taste, not saying that's an objective standard) and also worse, again IMO, that also made it past moderation. But how you figure there's "corruption" just because some were rejected I don't understand. It's not like the mods who volunteer for this site profit from or have a vested interest in what does or doesn't get hosted on the site. And you've evidently been around long enough to know better than that to make such a suggestion.
If you really want feedback on why they were rejected email a mod to see if they'll take the time to give it to you. But after this thread where you suggested corruption might have been involved, you might want to wait a while or be a tad more conciliatory if you want any of them to spend more of their own time to deal with you on this issue.
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