Even though it's a right to work state, based on the fact that the company apparently fired a woman for posting something "obscene" when they simply told a man to remove a comment that would be far more offensive to some, she might have a case.
However, I think her attorney would say that even if they can prove gender based discrimination they are still going to have an issue in proving damages; i.e. her firing has generated:
* several job offers,
* more than $100,000 in non taxable gifts via "Go Fund Me," and
* notoriety which she has accepted rather than spurned.
The company is still taking a daily beating...
Again, employers who attempt to control an employee's social media open Pandora's box.
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In this world you must be oh so smart or oh so pleasant. Well, for years I was smart. I recommend pleasant.