Fly and even engage in AH if you want to. I hope no one looks badly on anyone that chooses to. We all deal with tragedies in our own ways. Some can accept and move on faster than others, and some just can lose themselves in games, regardless of the symbolism involved.
Personally, I didn't feel like playing any games yesterday, I just popped in some anime and lost myself in that after listening to Bush speak last night. As soon as the anime was over, the thoughts of the day's events overwhelmed me again. It was good to escape it for 90 minutes or so...