@Demongornot:
You seem to be very knowledgeable about aviation and go into detail in your analysis. I wonder, would you care to take a look into my feature proposal of Charter Flights ?
This concentrates on the passenger aspect of charter flights, not cargo ones or business ones which might require seperate threads. You mentioned them as well to have and seem to emphasize on the aerodrome aspect, so GA, so your opinion would be very helpful in that case and if you find any logical flaws, or have additions to that, feel free to point them out.
Thanks 
P.S.: You broke the letter limit? Congratulations! 