If you on the high end of the pay scale, then sharing your information can hurt you. When it comes time to negotiate a raise, the company could be reluctant to

If you on the high end of the pay scale, then sharing your information can hurt you. When it comes time to negotiate a raise, the company could be reluctant to give you a raise knowing that your peers will also expect a similar raise. If you keep your salary a secret, when it comes time to ask for even more money, then the company could be more likely to offer it since it will not have repercussions across the whole team. Selfish? Yeah, probably, but there you have it. If you are on the low-end, then getting the salary information of others helps you. If you are on the high-end then it can hurt you (IMHO)--as salaries will tend to trend to the average if they are public info.