Ask HN: People who joined a company hoping to fix/add features, how did it go?

Whether joining a certain company or team within a company with the express purpose of fixing that one bug which annoyed you in your everyday use of a product, or if you really wanted for a product to add a certain feature. You finally joined that team. How did it go? Were you able to do what you wanted? If not, did you finally understand why it's not a priority and do you agree with it?