Probably 90-95% of my time spent on osu is in the editor, either mapping, modding or testing. I really enjoy the freedom of creativity, and if, at the end, you have something you can be proud of, something that other people like, it's a great feeling to know that you contributed to the growth of the game.
Currently mapping mostly CtB as we lack in maps and modders but also some Std, plus that one all-mode set that I will rank eventually... stares into the distance