What is HER problem?
Rant, according to the Oxford dictionary, is to speak or shout in a wild impassioned way. For some reason this method of trying to be heard, or perhaps understood seems to be gaining ground. Perhaps it is just a reflection of other violent and uncaring ways in which people are either trying to bully their ways through life or to be noticed in an otherwise increasingly impersonal world.
Instead of getting positive attention, the folks who feel some inner need to rant on their political views, their opinions of sports events or some personal perspective on some unfairness in their lives, get glances askance from others as some lunatic spouting off and earn more of what they may have been exploding over in the first place, being avoided.