I do not believe a person's salary history gives you any useful information about their effectiveness as an employee. I have worked with people who had higher

I do not believe a person's salary history gives you any useful information about their effectiveness as an employee. I have worked with people who had higher salaries than I did who were clearly much worse at the job (a backend architect at a past gig told me that UTF-8 supported only 256 characters, and refused to acknowledge it when I pointed out sources that showed he was wrong).