Many people write, but nobody ever sees the fruits of their work, many times because they are afraid.
A website where users can publish a sample of their work (maybe a chapter from their book) – anonymously, and others help them by reading and reviewing. The anonymity is key.
If you regularly write your thoughts, a journal, etc., you know that after a while it takes a lot of space to store these notebooks.
Make the notebook’s “paper” from a material you can write on. When you finish the journal, you process it (by heating, chemically, etc.), and it will shrink considerably in size, while still leaving your writings legible.