As you say, being evil for the sake of evilness is an old cliche, people are more discerning now, and request motivation for actions. The trend also holds true for heroes, they are good at heart, but an overly 'sanctified' hero that only has qualities gets tiring.
On the topic of the rules:
quote: 'Should they actually say something about "you" though. Ignore them, they are merely the lower chain of the internet dogs that constantly drag the rest of the world down.'
That is great advice, there are people who lash out either to get a reaction, or simply out of envy. They are immature, have nothing constructive to say, and trying to reason with such individuals is an exercise in futility. In short, flamers are better off ignored.
I'd also add: know your characters well. I mean make a list of their characteristics, likes, dislikes, history, friends, enemies - but remain flexible. I made a file for each character in my comic, but as my skills improve, they are also evolving. The basic make of the character has to remain constant, but little bits can be added as the comic progresses in time, and I think it makes it the more rich and enjoyable.
And thanks for the 'pie award', I love pie 
Beauty In Diversity