Today's Wall Street Journal discusses workers willingness to talk with their peers about what they are being paid as a generational change. Workers Share Their Salary Secrets. But as the article notes, in the past many employers prohibited such talk.
Even though such rules may have gone unchallenged, that is one practice that the NLRB has long held infringes an employee's rights under the NLRA. Given that many employers don't think about the NLRB or the NLRA because they don't have a union, my guess is quite a few Journal readers today are saying to themselves, "Wow, I didn't know we couldn't do that."
Before the latest procedural tangle that has ensnared the Board, was making a much greater effort to assert its role in the lives of non-union employers, and I don't see that effort subsiding in the future. Once (if?) we have a duly constituted Board, I am afraid that many non-union employers may be making similar statements more frequently.