Annual performance reviews are just all-around ‘meh’, but if you have some beef with your boss, it's even worse. OP had just that — a performance review that they weren't exactly looking forward to. Their boss took the opportunity to criticize their ability to keep track of and finish simple tasks. The company didn't invest in a task management solution, and OP was finding it hard to go off a massive email chain when as it turns out, between the 30 people who were CC'd, 25 didn't know the diffe…

The moral of this story is to be nice to everyone because you never know who you'll end up working for. Look, I get it. There are people I work with that I'd rather never see again. But life is arguably pretty long, and you might be surprised at who you'll potentially work with, or rather, beneath. OP had one of those supervisor's who simply despised him. Maybe he reminded her of an ex-boyfriend, or maybe she was jealous. I'm gonna vote on the latter, as OP was extremely good at his job, despit…