[m000]

It is. 5400rpm drives have specific uses. It also hurts sales of competitors selling real 5400rpm drives. It may even hurt the whole 5400rpm drive market, if WD competitors can't match the price of the fake 5400rpm drives and decide to cease production.

[hosteur]

I also heard that it might cause problems mixing 5400 rpm and 7200 rpm drives in a single NAS box due to vibration interference. Not sure if true. But the general trend that Western Digital seems to be OK with lying on specifications is concerning.