As lovely of an idea as that is, someone has to write the backend, design the front-end, scan tens of thousands of documents and provide full-text search for them. Prior to JSTOR, these documents were trapped in university libraries, and you would have no feasible way to access them. I think they share your goals, and any problems you have with their operation is due to external factors (publishers, licensing, etc.).
Simply publishing everything for free is an absolutely sure-fire way to see no new content from JSTOR and a huge setback for the digitization of physical articles. Your proposal is a ridiculous over-simplification.
>Is JSTOR a friend or an enemy of my vision? Three articles every two weeks - sounds like an enemy.
How often do you read JSTOR articles? Personally, I don't power through a math paper in a single day, but maybe you're brilliant.
This limitation is not their fault. You're angry at the wrong people.