One instance of not using a trope doesn't mean a trope doesn't exist or isn't dominant. You get that, right?

Two examples excuse the issue being widely pervasive in the rest of the industry?

Ah, what you might not understand is that it would be pointless for her to allow comments of her videos. It's already well proven that all the trolls and assholes will come out of the woodwork and completely trash the comments (indeed, I fully expect something similar to happen here).
They'll just flood the comments…

From seeing examples of her hate-mail, her youtube comments wouldn't do anything to foster conversation. They'd just be a festering wall of hate speech.

Oh come on, it's YouTube. Logical, well thought out comments probably make up less than one percent of the total comments.

well, SPOILERS TO FOLLOW SO YOU BETTER AVERT YOUR EYES, DAMNIT, I'M TRYING TO ANSWER HIS QUESTION!