I havent asked anyone to credit me ever I think? But now I would like to be credited if you use my work. Credit me please or you wouldn't like distilled water on some of the pages =P Heck I wouldn't!
Unless you're english. Why english? Because it's the only language I know and it benefits me anyways.
Other than that, Uhhhhhhhhh If I have done collaborations or if I have a good relationship with you, then you don't need to credit me.