I notice we've had about sixteen iterations of "why should I care how someone else plays the game". You should care when it affects how you play the game, which often it does. Give someone a "level me from 1 to 50 now" button, I don't care... until I end up on a team with them, clock ticking in the Cavern of Transcendence.
Plenty of people when looking for teams, especially for tf's and trials, would specify that they wanted people with experience running that tf or with whatever requirement/s floated their boat. If you were that picky about whom you teamed with for specific tf's, all you had to do was say that when you were putting your team together. Or you could have done what a lot of us did and just run with the same group most of the time. Or you could chill out and just have fun playing the game.
Personally, there were only a handful of times in over five years (maybe once a year, not "often" at all, and I played a LOT) that I experienced severe frustration with someone who didn't really understand their powers or even their AT's role on the team (and that, of course, is also up to major debate!), but those types didn't really hang around on teams that long, if they did, they might have actually learned something. Not, of course, if you're screeching at them for not doing this or that right or not having this or that power or whatever.
And that's another related point, we met a couple of power-levelers once they emerged from AE and wanted to experience game content. Instead of having a hissy fit and berating them for sucking, we'd help them out while running tip or radio mishes and they'd start to love the game, even start new toons with us and level them "normally." (Alas, I never got my water blaster to 50.) In fact, towards the end, one such newish player stood right by my side in AP33, torch held high.
