This thread is titled "Bad VW Part Vendor Warning List." Who's the vendor?
The thread states, "We have seen this same pump sold by our favorite CRAP distributor."
It doesn't identify the vendor by name, but as internet vendor "Prothe" has a significant presence in the Chinese parts aftermarket, sells through an uncountable number of false storefronts, and for many is the poster boy for crap and self-disintegrating products - it seemed responsible to link to the 'forgery OEM pump' thread here.
OEM forgeries add a whole new angle. Especially when even reputable shops like in the linked thread can find themselves with those dangerous engine-destroying parts in their hands. Thankfully they were able to find this one and share a warning.