It shouldn't be niche, and I think people treating it as such is part of why it's adoption is limited. The fundmanetal points of functional programming, such as immutable data, first class functions, and pure functions, are immensely useful when combined with other paradigms.
Every coder should understand the paradigm, even if they never touch one of the traditionally functional languages.
We're a place where coders share, stay up-to-date and grow their careers.
We strive for transparency and don't collect excess data.