Well no actually, I'm not sure I did get your point very clearly. Sure you are qualified to comment, but I'm still not clear about the motivation of players to try and alter an arena where they prefer not to fly. 
Also perhaps your obviously negative experience of the DA does not generalise to everyone?
I honestly don't have a clear understanding about the F3 advantages, except what I can gather from these constant threads. I really don't care either way myself, but someone has to speak up for the DA when these mostly MA player initiated witch hunts kick off.
If HTC made the decision to allow F3, is it not unfair to suddenly turn it off on those who prefer to use it? Especially if this change is demanded by people that don't even fly there. Do you see why I find that a little weird?
It's a steaming load of Hotspur to continually imply that everyone who flies in the DA is somehow a lower lifeform than the MA crowd. Maybe this is just human nature to part off a group and then deride it, I don't know, but there are some very good sticks in there and some very good people.
Of course there are knob-heads there too, there are knob-heads in the MA as well, and it's obviously going to end up as a mosh pit when it's very busy, look at the setup.
Please don't tar everyone with the same brush. 
Lower life form? I never intimated that...some have, but I have not. I can give you a fairly long list of friends I have in that arena, one I hired for our company. No sir...direct that crap elsewhere. My motivation is actually to mitigate yours...I do not believe its a great place for people to start their AH experience at all or as even a pass through.
Just so I'm clear...I'm not witch hunting or even hating on the DA or the people in general. I am relying on my personal experiences with the instruction I received there and my experiences...look, when you're new to this game, any little bit of info helps and that was where I was flying. It took a long time to get from F3 (my convergence was set at 600, that should give you some idea of how effective F3 is on under the nose shots because you just walk those 20mm's right into the plane your firing at) in the DA where I was proficient, to the more realistic aerial gunnery of the MA. Yes, dweebs abound in both arenas...plentifully...but again you ignored the inescapability of the only 3 bases at the lake. So, I choose not to go the lake very often for two reasons:
1. F3 provides an unrealistic set of advantages to lesser pileits...aerial gunnery and SA (the two things that make you dead) and very large percentage of them use it. Just because you don't, doesn't mean they will admit that they do...in fact, most I've flown with dont admit it readily...until one of these threads pops its ugly head.
2. The compressed area of operating your aircraft provides an advantage in quickly outnumbering and overwhelming your Air to Air opponents that makes "practice" a mute point. What good is improving your SA when there's 9 guys on you momentarily? I mean really? Do you just want to see them before they make swiss cheese out of your plane? Hey, my SA in there was terrific...I saw all 9 coming at me, and all 9 firing their forward mounted guns...I think I need to practice my SA some more though because if I get a lot better, I can get out of that situation. That is why I left and generally go back when the numbers are calm, like this morning..I saw you in there as I'm sure you saw me. Now, if you are using SA obtained by utilizing F3, you will feel BLIND if you move to the MA...I know this because that was me...I don't really want any noobs being taught that way...but, I'm not a policy maker here.
Again, I speak from my experiences which frankly weren't horrible BECAUSE of the people I flew with...they just taught me what they knew and most of it was kinda gamey and didn't serve me well when I left to try the MA. IMO, that is NOT the place to start your AH experience...and that is supported by at least one TA trainer who told me NOT to go in there to get better....he was right. He was saying this: If you practice something wrong over and over and over, you just get better at doing it wrong. Having F3 is isn't realistic is it? If you want his name so that you can verify that fact, I will PM it to you...but when someone that takes his personal time to train folks here says that, it has to have some merit. I support that trainer's judgement completely via my personal experience.
If it works for you, I think that's great but you don't have to defend it just because you fly there. Defend it on it merits and if you can think of enough evidence to support it being a good place for newbs to start their AH experience, get better and move into the MA or stay there forever and continue to improve on their skills as they are applicable to how the game tries to mirror RL, so be it. If they can be competitive enough to not get frustrated and angry and quit, I will absolutely agree with you. I just don't believe it can be done OFTEN ENOUGH based on the model there, all things considered.
Changeup