Wd Purple for desktop use

read here:  http://forum.synology.com/enu/viewtopic.php?f=178&t=85809&sid=c409affd78d01fed5acd53aa806f1882

“These drives are designed for " it’s more important to complete the read or write in the specified time frame than that the data written or read be correct" usage. Pretty much the opposite of what you want in a NAS that stores important documents, business data, treasured photos/videos, or anything except short-lived (days, weeks) streamed data.”

Is this true?