Accusations in a lawsuit, even when they happen to support your preconceived biases, aren't the same thing as proof. Yes, the complaining parties in various lawsuits have levelled accusations of that (or, on the last case, substantially narrower accusations of which that description appears to be a somewhat hyperbolic generalization.) But anyone who can afford a court filing fee can put any accusation they want in a lawsuit.
There are screenshots in the suits of concrete messages from people claiming they do each of these actions. At this point the question seems mostly to be about if this is systematic or just individual actions.
There is a lot of smoke for there to be no fire. However, who knows. Personally I have seen the same behavior where I work so I am not surprised if this is all true.
