But Curt, you already have one in you avatar's background!
Anway, if a poster wants to have a flag, he/she could incorporate it even now into the avatar - or in his/her location. But, honestly, I doubt, that some of our fellow poster's locations are correct. I have no problem with this, but I also doubt, that all flags will be choosen geographically correct.
One thing I like about this site is its clean layout. I feel flags would only add more visual clutter to its design.
But the issue has already been decided by Thunderfall, so my above musings are quite pointless.
Still I'd like to see an option in my profile, to turn flags off. Also I wonder if there will be historic flags or fictious flags out of books or movies?