Facebook is beyond useless when it comes to constructive discussions. For all practical purposes it counts even laughing or angry reactions the same way as a simple like and there is no dislike. The very real effect is the current information/trust crisis where even if someone were to patiently explain for the 1000th time that no, COVID is not a hoax or whatever the current ridiculous stupid shit is currently pushed, a newer irrelevant comment will be displayed with the explanation buried deep somewhere.