The way I see it, you have two options. The easier of the two, is simple:
Fly a different plane. Only the La-7 and the Spitfire XVI have earned the moniker 'Dweeb'. May I suggest my personal favorite, the Spitfire mk IX?
Second option, slightly more difficult, fly it properly, and fly it well. Fly it like a real plane, observe aircraft limitations, even those that arent mapped into the game, such as engine overheating. When you are not in a hot invironment, turn you RPMs down to normal, or even Max Cruise. Just tonight I flew an entire mission in a Spitfire IX with boost at 2 and RPMs at 2,250. Your plane does lose speed, but it can hold in the air. And then, as soon as you see an enemy, got so Military, or even Emergency power. That removes some of the dweebyness, as it does take a SLIGHT bit of knowledge to control RPMs. Then, dont just whorde, or HO, fly well. Avoid the HO, or cherry-pick, and ESPECIALLY vulch if at all possible. The Spitfire XVI is so ub3r you can get kills without ever doing those things. Basically, until you build up a reputation as a good pilot, be careful in what shots you take. But above all, be good enough that you can fly something else. The other night I saw a guy constantly landing kills in a Spitfire XVI. Everyone esle was saluting him, but I dont generally salute Spitfire XVIs. I said to him "I know your a damned good pilot. Do me a favor, fly any other plane for your next flight." he said "sure". So he did. He landed a pair of kills in another plane (I cannot remember just which one). When he did that, he really earned my respect. Its one thing to land 20 kills in a Spitfire XVI, but if you can jump in a P-47, or Bf-109, or even a Spitfire IX and land half as many, you truely are worthy of everyones respect.
Be advised, the above is just my personal opinion. Yes, I dislike the Spitfire XVI, but if you fly it well, and fly it right, truely LEARN the aircraft, both its Aces High performance and the real-world plane, no one has any right to call you a dweeb. But if all you do is HO, vulch and pick, then you are fair game.