old bugs, inconsistent and not up-to-date documentation.  Then I see the ambitious product roadmap and realize that ED enjoys almost perfect market monopoly in their space.  Despite this, they will be taking on the AAA, Ace Combat, Air-Quake space with Modern Combat.  DCS is a pretty girl and gets away with these flaws.  BMS is and older and not-as-pretty gal and has to deliver the goods,   
But yes, thank you for pointing this out as I love flying both the frogs.