I had this same dilema a couple of months ago when the Red drives came out, so I had some communication with WD. I asked if the Red drives would be a good fit for WHS V1 if I did the jumper trick.
They told me that the only drives that work with the jumper are model EARS drives mentioned in the article you linked above, which as near as I can gather have been out of production for a year or more. The newer Green drives have EARX or EZRX model numbers. The jumper trick won't work with Red drives either.
Like andersa, I also ran my WHS V1 with an advanced format, un-jumpered WD Green EARX model drive for quite a while (about a year IIRC). It always worked but it made me nervous so I replaced it. Right now I am running a HP EX495 with the original 1.5tb Seagate drive along with two 2tb WD Green EARS drives. It runs great for now and I still have a year or so before I outgrow it, at which point I will likely upgrade to WHS2011 as others have done.