Most Online at one time, and threads/posts submitted by members are entirely different.
I think you will find that this includes guests who just surf & read as well.
The administrators will correct this if I am wrong.
I am one of the night owls at times - because I am a Manager who does three shifts - Earlies , Lates and nights.
On nights - if my work is done, and I am not doing what we call "Fire-fighting", or my workload is not heavy,
I can log on for a bit to pass an hour (sometimes two), likewise on my breaks, some days - never.
However, this does not make me a saddo who has no life except for the forum, - I tend to lead a busy life,
it does mean we don't have a TV at work - LOL!
I also look in if I am on the PC at home - but not through the night!!