I'm just curious why most messy pictures posted in the forums appear in the Picture Archive but a smaller percentage of them do not. (I'm not talking about linked photos that aren't technically posted here; I mean photo files that are literally uploaded when the post is made).

If you want an example of this phenomenon in action, I posted a bunch of photos in this thread yesterday:

https://umd.net/forums/favourite-umd-images--a-photo-post#postid_1082214

None of these pics appeared in the Picture Archive. (I know it can take 4-6 hours sometimes for the Picture Archive to be updated, but at this point it's been well over 24 hours, and many pics posted after mine are in the Archive now.)

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Another possibly related phenomenon:

Sometimes when people post photos to a thread, a note appears on The Wall stating somethings like: Pies'n'Tentacles uploaded 18 photos on a forum thread, "Thanksgiving Tentacle Mess."

Other times when pics are uploaded to a thread, no announcement is created on The Wall. Just curious why that is ... does anyone know?

Discounting the aside in parentheses, you haven't actually finished the question!

"I'm just curious why most but not all messy pictures posted in the forums (... " Why most of them ... what?

Lizzie, thanks for pointing out my incomplete question. I have now fixed the original post.