It's not about using them to make the purchases, it's that they are censoring what we are allowed to see. They are also censoring a ton of other items. What is to stop them from only showing you products that they are affiliated with. Just me $0.02 I guess.
BMWP Exhaust, BMP Suspension, M3 Front Sway, Scopione CF Diffuser, 1Addicts.com sticker = + 50HP