Sorry.

One would expect that behavior, e.g. emotional responses we need to keep a lid on, that is maladaptive now would be better-suited to the environment we evolved in. For instance, overeating shows this pattern.

So I'm suggesting that anger is a signaling mechanism that is sometimes faulty now, and sends signals we don't want to send. However, it evolved to send signals that were good in that environment.

This is not necessarily the case. Evolution could not perfectly control the signals we send - there are situations where we do Y even though, even in the evolutionary environment, X would be more advantageous.