I gather wood and make fires probably more than I should and I do it primarily for practice and these days, mostly just when it's wet out or I'm freezing my butt off (or both). I think it is extremely important to practice my skills and keep them up but yes this does bring up many moral dilemas as I have touched on before with other important survival skills such as hunting and more specifically trapping. There's no way to win, your "skills" are nothing (IMHO) if never practiced but it is also wrong (IMHO) to damage the land or it's inhabitants when you are not forced to. But you (or at least me) try to find the balance and deal with it as best you can.