Wikipedia is a very good thing and system. But in terms of learning curves that can be made to earning curves, it seems that begging for money from the user isn’t a model we want to recognise as one to follow. But it doesn’t mean that I’m not very impressed with Wikipedia. I like and encourage you to pay for Wikipedia so that we others can keep on using it. This last sentence tried to demonstrate what the problem with Wikipedia can become and maybe an ongoing problem. I believe that one needs to practice price discrimination. So the less money you have, the less you have to pay. And if you don’t have money, you can access knowledge that others pay for. You perform some tasks and you’re in the upgraded version. Problem with that is that it’s difficult to get proofs of people being poor or rich. So one would need to find ways to verify peoples’ ability to pay or contribute in one way or another. Money is not all. Things done or provided can lead to needed buying/investing or negotiating power.