What's the meaning of a "karmaflight"?
So you have flown with me. Like a bird, no carbon footprint, no noise pollution. Well done - but consider this:
I don't charge my passengers, but still, equipment, insurance, checks and training easily sum up to 2k Euros per year. I'm taking passengers up to improve my karma. You can improve yours, too, by passing today's joy to others.
Maybe you feel like helping others by working in a grassroot project. If your account is well balanced you might support a social or environmental project. And if you can't afford either of both, just lend the next best person a helping hand or offer a kind smile.
I don't even want to know what your personal approach will be. Just do what you can, and try making the world a better place 🙂