We don't have to walk on egg shells when speaking. Men and women can still interact like it was before I started reading about such insanity.
"Just be cool" is not a strategy.
God help you if you ever made the mistake of greeting a room full of people with "hey you guys" in her presence.
The ridiculousness of the complaints escalated until any Slack messages not strictly business related were relegated to direct messages with only trusted people. There were no more work outings, because people didn't feel comfortable. People avoided engaging her at work as much as possible for fear of an HR report.
It made work absolutely miserable.
Once you see one person behave like that, a very easy trap to fall into is to think that everyone who is concerned about even vaguely similar things is trying to do the same thing, even if their concern is fair/reasonable.