Cool. I didn't want to come off like I was targeting you (very poor choice of words, I know) for sharing how you felt about the third act, as I do see how that could feel a bit loaded because of the stuff we know happens with unstable minds who act out the horrible stuff they write online. We see it in the news.
I guess since the news clips in the film and even Selina alludes to Riddler being a viral sensation, my reaction to the secret livestream reveal was simply "Jesus, well that makes sense." Especially after you see the protests earlier in the film. People are getting radicalized, but the crazier ones are actually working with Riddler, who has been doing all his nasty work online throughout the film. The online radicalization aspect is shown, but never really explored, so I don't feel like Reeves was trying to make much of a commentary there. It was too briefly touched upon to make a troublesome impact for me.
By the way I think the movie broadly wants to make some observations about broken systems, or institutional failure, without really focusing too much on one sole aspect. It's like he wants to portray a corruption umbrella that seems to cover all of Gotham. Both Riddler and Batman are the children of Gotham's corruption, and they are both corrupted souls themselves. But to borrow from a certain classic story, upon staring into the abyss, Batman blinked
