The no purpose LEDs on front caps seem to be a common peeve with an awful lot of people. Hopefully this fad will disappear from builders before too long & they will find something else to bling up an otherwise cheap unit.
It would be so nice if these lights were less intrusive by using a lower brightness & an easier on the eyes colour such as red or blue.
I don't know if their use is a regional thing at all but thankfully in my experience the use of these lights is rare. I'd take a guess & say that most of the users of these lights are newbs who have not gotten into the hang of looking around & seeing what others are or are not doing & seeing what people do to minimise the intrusiveness of their lights on others.