I'm not sure how much of people's reticence to dislike something has to do with fear of backlash. The only group that I imagine it would make a real difference for would be (semi) public figures. And from a pure numbers perspective I don't know if they make a noticeable dent.
But as has been noted this is basically reddit's system. But they had a problem with brigading in the past until they tracked it and banned a whole bunch of subs and users. This doesn't work for Twitter because they don't have users neatly contained within long lasting subs so you can track when they're invading another sub. Whereas hashtags are spontaneously generated and positive/ praising hashtag virality seems difficult to distinguish algorithmically from negative hashtags that are going to harass people.
I'm not sure how much of people's reticence to dislike something has to do with fear of backlash. The only group that I imagine it would make a real difference for would be (semi) public figures. And from a pure numbers perspective I don't know if they make a noticeable dent.
But as has been noted this is basically reddit's system. But they had a problem with brigading in the past until they tracked it and banned a whole bunch of subs and users. This doesn't work for Twitter because they don't have users neatly contained within long lasting subs so you can track when they're invading another sub. Whereas hashtags are spontaneously generated and positive/ praising hashtag virality seems difficult to distinguish algorithmically from negative hashtags that are going to harass people.