They've been publishing these stats for years and years now, too. It's a wealth of data they've provided and has helped me pick the dozens of drives I've ordered over the years
For my personal NAS projects, I generally buy a WD MyBook/EasyStore from Best Buy and shuck the drive. The drive on the inside is generally a WD White Label, which is a WD Red (NAS drive) that didn't meet QA specs. I wouldn't rely on them for mission critical stuff, but they're perfect for a Plex server and you can generally get them cheap. (worth noting that I've seen a few say they've been removing the SATA connections from these recently and I haven't bought one in about 15 months so do some research before purchasing)