This does sound promising, although the premise seems a bit difficult. Unless everyone involved is part of the same family, it seems like you'd end up with either confusing posts between multiple people in different families or a bunch of solo posts with a few clashes between other families. So I can see a group of neutral people working with all three houses or a group from one family trying to do something with the city, but not mish-mash inbetween, if that makes sense.