CHCA has posted an anonymous email that outlines concerns about the "cityhood" trend that is going around DeKalb county. A key concern is that as new cities incorporate residential and especially commercial property, they carve away the county's tax base, to the detriment of those left behind. And those left behind are typically residential property owners, their public school systems, and the county's service infrastructure (which includes everything from water supplies to trash collection to emergency services). To remain financially viable, lost income must be replaced and that typically translates into higher property taxes.
You can see the whole post here: http://clairmontheights.org/node/2547
MANA supported commissioner's Rader call for a moratorium on these decisions, in particular when decisions do not appear to be fully studied and understood and "destabilize" the county as a whole.