I propose dispensing an education tax. I typically call these things the price of an education. Obviously it will all be IOU's, but when dispensing wisdom one could earn back those IOU's, thus encouraging sharing/mentoring, and if all goes well, you depart this world with a surplus of these IOU's. The only thing I can't quite figure out is what to call them.
To explain what I mean about the price of an education, we typically learn things in three ways. The least retained method (I'll call it method three) is to learn it from others, such as via teaching. We expend time and/or money to learn those things. The second method is to learn from the pain of others, and the third and most retained method is learning things for oneself. The latter can also be paid for by pain, blood, and should that education result in death, we become the teacher of method two. When we ask a question before doing any research ourselves, we trade method three (from others) for method one (from ourselves) and do ourselves a disservice, hence the penalty, or education tax.