The more I think about it, the more I like the idea of holding the next DNC in Atlanta....
So you want the Dems to lose Georgia in 2016? Considering how things went in 2012, I'd have thought you'd want the Dems to hold their convention in a city in a state they're going to lose anyway, such as Salt Lake City.
This is a weird statement. What about Denver in 2008? I don't think the location of the conventions matters very much, but surely if they have any effect, it's a positive effect.
Having a convention in a competitive state is also a pretty new phenomenon, as is the "received wisdom" that you shouldn't repeat cities.