I took a class in college that had a project where we made a mood-reading algorithm, for restaurant reviews I think it was. The problem with translating it to these forums would be 1) it's not always accurate and 2) it can struggle to detect sarcasm/trolling, for example if someone makes a post about getting DC'd on their lighthouse game I might jokingly say something like "skill issue" or "get outplayed idiot" that a human would recognize as a joke but an algorithm wouldn't.