Well, when you upload they are in a waiting list. Since this is a moderated site some of them might be rejected. When that happens you do not get a notification. Once apon a time, you might have gotten a notice, but many people abused the moderators in extremely vile and upsetting e-mails. So these days, just keep an eye on the wall while it is in the waiting list and if it disappears consider it to be moderated. If you have questions about a particular wall, it is perhaps best to contact the moderator via e-mail. They are really all very nice people.

About the wall that was accepted and then vanished, for sure you might want to contact someone about that one.
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