there are all sorts of reasons for a departure.
at a trucking website i am a member of, the owner said he might have to shut it down.
many of us just exchanged email addresses......for the all too real probability.
many leave due to friction with another and the mods do nothing about it.
some leave under thier own power, some leave when the mods open the exit door.
some return, many others just don't.
after a while, it just doesn't pay to stay under some circumstances.
maybe freedom of expression, word filters, and such.
all due to "the owners want a family place".......
if'n there are children here (other than some of us 60 and over types), i'd be amazed of such an audience.