I suspect that this actually downloads something instead of uploading. I have no proof, but I believe it.

It's a reference to the old "download more RAM" meme.

I would be shocked if it did anything at all.

No, it does. I donated 16 GB, and my FF usage slowly went up to 24 GB

I tried to upload 16 GB to help Zuckerberg, but the GUI is suspicious.

[dead]

From a quick skim of the page source (including a dynamically created iframe) it just does a little animation and locally allocates some useless arrays in JavaScript to waste your "uploaded" RAM.

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