Well knowing how to program a game only counts when you want a job with a big games company.Or if you plan to make wii,xbox360 or ps3 games with thier dev kits.With Indie gaming it does not matter what behaviors you use or what app is used , As long as the game is good then most people won't care how the game was made.
Ask any gamer if they care about what dev kits were used in a game and they will just say um i don't care.The same goes for behaviors.Well i certainly don't care what the devs used to make gears of war for instance.I didn't even know UDK existed until i got it from one of my friends.
And as for the guys at game maker downgrading game devs, They are just a bunch of green jealous goblins.Yeah thats what they should be called green goblins right next to the trolls.