If you think Demigod X is overpowered, learn to play.
If you think Demigod Y is underpowered, learn to play; under the specific conditions A, B, and C, he or she is very good.
If practical experience suggests Z is a gameplay problem, theorycraft proves you wrong.
If you have problems connecting, learn to forward your ports, and shut up because it's better than it was a week ago.
I think that covers everything.