IT and Brands have said to do this for YEARS!
Hey wait a damn minute before you little island buggers castigate (look that up Red Coats) "Americans" on this!! I've been in IT since 1989 and hard drive, computer makers and IT Managers have told people in business and consumers to "leave your computer on" for decades. (I never agreed with this and many of my IT friends have be vocal in our disagreement). I've read this in the UK and European IS Tech rags for year too! It "supposedly" led to longer HDD and computer life.
The Apple and Mac morons in Stupertino USA have BRAGGED for decades that Macs should be left on 24/7/365. In fact MacDroids boasted about leaving them running all the time - hence the bitchin when continuous Apple Flake-Updates caused "sleep" problems. Idiot tech talking heads on the radio like Apple whore Leo Laporte, still tell listeners to do this!
If you live in a Glass House UK, better not be throwin' stones or rock hard kidney pies.