Will "academic expert" for study website hurt me on the academic job market? I've been offered a side job working to answer submitted student questions (at my own discretion) related to my field of expertise for a study website. Seems pretty harmless as a way to earn very minor extra cash.

Would this have any implications for my prospects through the academic job market? I probably wouldn't list it on a CV, but would a committee seeing this kind of activity see it as a bad thing?
I don't see it being harmfull to your career if you don't answer asignment questions or doing something that can be thought as unethical. may be you can elaborate on why you think that it can harm your career?