On Outrage!!

 Outrage is a funny emotion.  On the surface, it seems like a negative, unpleasant emotion.  After all, its root is the basic emotion of anger.  However, humans are a complicated ape.  Our emotion systems evolved largely to help us obtain and maintain strong social standing within small-scale communities, as doing so was evolutionarily adaptive for our ancestors.  Expressing outrage about the behavior of others, often in the form of virtue signaling, seems to partly function to elevate the status of the person expressing the outrage.  And to the extent that this strategy may be effective, we can understand why it is often the case that expressing outrage often makes people feel good rather than bad.

Understanding the evolutionary roots of outrage may well prove moral outrage often is less about outing someone else for problematic behavior than it is about inflating one's own sense of self by buffering threats to one's own moral identity.  Virtue-signaling-based outrage seems to be much more about sending out signals about oneself.  It is essentially putting others down in an (often unconscious) effort to raise oneself up.

Screaming is not only a perfectly valid form of release, but a healthy one, too.  Screaming creates a chemical reaction that is similar to the one you get when you exercise - you get a dopamine hit and some endorphins flowing.