In the Internet, we have built an unlimited stream of information. You could quit your job and do nothing but post and reply full-time, and you'd never get near being able to respond to every commenter if everyone who read what you wrote chose to comment.
Filtering signal from noise is a vital skill in the online era. And sure, if your filter is over-tight you'll end up in an echo chamber... But as there's no penalty for being wrong on the Internet, a healthy filter is downsampling a lot of information these days.
OK I see. Well, my input is that it goes beyond editorialisation to misrepresentation for the reasons I outline above! Imo enforcing appropriate boundaries is good for one's mental health and relationships. And I think the boundary she describes - ignoring tangential, agenda-driven comments - is absolutely appropriate.
