Too bad a "negative rec" could not be provided through a specific sale here on Pinside.

For example, I go to leave negative feedback on someone. For it to go through, I'd have to provide the page for the specific machine/mod/item in question. Once that link is provided, no one else is allowed to use that link and the feedback should be sound.

Then again, for mods where 10-1000 are being made, something else would have to be used - maybe a payment system within Pinside verifying the purchase occurred for the mod....?