[vikram]

I didn't write a lot of the libraries. Maybe 50% of the code is mine, most the algorithm implementations, the rest of the stuff is picked up from previous projects or existing utilities that lisp programmer's have written.

The reason one uses lisp is because the team is small. Very small like 1 person. So sharing isn't really that much of a concern.

I agree that it makes it harder to start. Which means that very few people stick with it.