schuyler101, you make a good point.
I would counter by saying that any discernable HFA in RL is based on TRAVEL and not a straight "HFA".
Teams in MLB travel; night game goes extra innings, road team has to shower, change, board the bus, drive to the airport, get on a flight, fly, get off a flight, get back on the bus, check in to the hotel....all between the hours of 11PM and 4 AM. Human beings, as demonstrated by science, function best on a regular sleep schedule.
In HBD, there is no travel penalty. If there were, then you might be able to ID a HFA simply because the road team's plane was delayed because of bad weather at O'Hare.
Crowd effects are almost impossible to measure and quantify. I have no idea how to make that "real" and a part of the game. I can see a travel penalty that has an effect on fatigue...I would not support the incorporation of such a change, but I can see how it might work.
The problem with this thread is that it calls for "HOME FIELD ADVANTAGE" without bothering to break down what a HFA actually is, or how it works.