Does it pay to get fishing up to 100? Are there things you can only pull out of the water with fishing and are there boats you can go out on the high sea with and control?
Currently, fishing is almost all placeholder. You can catch three types of fish, some broken leather and cloth gear, and a ring with +1 Intelligence. There is no variation yet for location, line or lure. Expect this to greatly expand in the future, but for now it's mostly for show. Relax, cast a line, and have fun!