Funny, about a week ago I saw an advertisement for a relatively expensive program to "remove" said chime. "Why would you want that? Why not just mute your volume like most of us have since . . . like . . . 1996?" The same objection was raised by reviewers, along with a free Terminal command to silence said chime.
So I thought this was a "how to" do just that.
More seriously, the article suggests that the occasional reboot is no longer necessary or even desireable in the Brand New Macs? I guess with everything going to SSD you no longer have to worry--if it is a Macbook--with transporting it with a running even sleeping internal hard drive.