The usual practise with many game companies is to turn up at forums for the first week or two after release. Their mains aims seem to be collecting bug reports and doing a little PR, helping with a few queries etc. Firaxis did that here and at other forums for Civ3. (Of course some companies don't bother at all - so it's great to see Firaxis coming here).
Appearances are now pretty rare, so it's good to see Dan popping back again recently. Dan's credit in the game is "Marketing" so he is probably unlikely to have in depth programming knowledge, but he does seem to try and either answer or pass on stuff if he can.
However, I don't think that we can expect regular answers to questions, and they are also well aware by now of the majority of the gripes, problems, dislikes etc.
Edit: perhaps it's worth a try though..
Hi Dan,
If you can squeeze the formula for city flipping due to culture out of the programmers and post it here - you'd be a hero to thousands!
Cups hand to ear and waits......
