The teacher in question had nothing to do with any of this and is now being bullied and harassed like she is the bad guy.
He reputation was damaged and career may be affected. A defamation lawsuit is a distinct and appropriate possibility.
Up to now Reid has portrayed himself as the victim in this. Hardly the right attitude. I don't see how he can undo this.
He is a victim. Totally.
I don’t believe Sagehorn has said anything publicly regarding this, though I could be wrong. I know the students at the school are supporting him.
The issue for me is that some people take sarcasm for granted in certain contexts in social media. Clearly, that isn’t the case, nor should it be. And you’re quite right, he is reaping the whirlwind.