One of the many quirks of the human brain is that the emotion of moral outrage stimulates dopamine production, which , in very basic terms, rewards the person experiencing that emotion by making them feel nice, even at the same time that they are angry.
The tabloids cottoned on to this many years ago and social media is equally aware. Stoking outrage is a proven way to generate interest from people who at some level know it's going to give them that dopamine hit.
Of course it's also absolutely natural to feel those emotions when somebody clearly trangresses the normal moral and ethical boundaries, but whenever you get a huge mass public outpouring of outrage it's always worth considering whether the original transgression really warrants that extensive reaction (of course, sometimes as in the case of say, terrorist attrocities it clearly does) or whether , essentially, people are just enjoying the dopmine high at this point.
And whether those continuing to stoke said outrage, in this case more than a month after the transgressions came to light, really care, or are they just cynically jumping on the bandwagon for guaranteed clicks and likes and, in some cases, financial rewards.