I think it’s funny how many people have no idea what “freedom of speech” means.

All freedom of speech protects you from is persecution from the government for anything you say that is not threatening or endangering to others.

It has nothing to do with:
a.) Your job
b.) Your personal interests (forums, Facebook, groups etc)
c.) Your school
d.) Your friends

You have the freedom to say what you want. You can’t be arrested for it. But that doesn’t mean you’re immune to the consequences of your words outside of the government.

You can’t say you hate your job (paraphrasing) on a public website and expect it to stay there. Twitter isn’t Vegas.