Design choice for suspend option only

[Mark Blakeney <mark blakeney bullet-systems net>]

Can somebody please post a reference to a discussion amongst the gnome3 
developers about why they decided to only provide a suspend option on the 
user menu (and hide the power off option with the alt modifier)? I would 
really like to know by what rationale they came to this astonishing 
decision?

I like and promote gnome-shell but frankly it is embarrassing to have to 
apologise for this design choice to new users. It leaves an awkward first 
impression.