Whether a thank you note (or letter or email) after an interview matters seems to depend on whom you ask. Can a thank you note really make a difference?One online job expert warns job seekers that they MUST write a thank you note after a job interview or face the prospect of being eliminated completely from the next round of interviews – and the job. Now I have to tell you that my sensors go off when I see words like “must” or “have to” or “always”.The expert went on to tell a story of a hiring manager she knows who eliminates any candidate who does not send a thank you note. Really? Even if this candidate fits the job in every way and everyone she met with during the interview process liked her? If this is true, I have to say that I wouldn’t want to work for that hiring manager!When you are looking to fill a job opening, sometimes you get lucky and find more than one great candidate. Maybe in that case, the lack of a thank you letter could be the deciding reason. Maybe. But I sure would hope that even in that case, the hiring team would look for qualities other than after-interview note writing that make the person the best fit.