I don't use Twitter, but I agree with your point that crowd-sourced opinion, without constraints--the "dislike" option you offer, for instance--often produces a questionable consensus...
Consider 1} Cunningham's Law: "The best way to get the right answer on the Internet is not to ask a question, it's to post the wrong answer."
Only somewhat whimsical with more than a bit of truth to it...implying that if you post something without much merit someone will be along shortly to set you straight...
Unchecked commentary allows a "conversation" to run headlong...speculation...rumors...gossip...
We all have different preferences for entertainment I guess...I prefer thoughtful sources...