Time is a commodity that is why hotels charge you if you want to arrive before 3pm and stay past 11am.
That is why all those extra miles on airlines and minutes on mobile phones are available to donate for the military.
While that segment of commodity is good what about the other "time" the one where you spend listening to a story to transcribe it. Some people spend only an hour but others can spend weeks and days helping preserve history.
Why isn't listening and transcribing an activity...depends on how you listen. Some volunteers can do the action remotely while others get to go into someone's home and listen to them talk about their adventures or what a typewriter is!