I would be fine with the automated citizenship suspension system New Rogernomics proposes. My primary objection to an activity requirement is that it's useless busywork, and could complicate things if a lot of citizens lose citizenship at once, so if we're automating the process and only suspending citizenship until they post instead of revoking it, that resolves both of my concerns.
Cormac Skollvaldr
"We are all misfits living in a world on fire." - Kelly Clarkson, "People Like Us"
"We are all misfits living in a world on fire." - Kelly Clarkson, "People Like Us"