The PG limit is, apparently, 20,000 members on PC and 1,000 members on consoles.
I have a 2 year old XBox I've turned on all of 4 times, and never played a game on since I bought it.
I have a PS 4 I have turned on in over a year and half, and the last time I did it was to update No Man's Sky.
The thought of trying to play Elite on a console with its limited control options makes my insides want to jump out of my nose.
PC is my only concern, and 20k is no small number of people.
But aren't most large PGs empty these days?
The ones I play on - not at all. I see all kinds of people, at all kinds of times. A large number of them are also on my Friends list. It's pretty rare that I don't have at least a full page of people to talk to at any given time.