You seem to take it for granted that most people who join this site are sincere about having real productive discussions. The fact is that "free speech" is a rallying cry of bigots, and many of the people on Saidit will fit that description. A real discussion with a bigot is not likely to happen. There is no way to productively discuss arbitrary feelings of hate, disgust, etc. towards a demographic group; people just end up discussing dog whistles and empty, fallacious justifications for the bigotry. The bigots ignore arguments, insult other posters, switch to new bullshit arguments, etc., with no end in sight, because they don't really give a shit about whether what they are saying is true, accurate, sensible, or coherent.

The world would actually be better if people just openly admitted, "I hate X group" and left it at that instead of trying to hide it and/or justify it with all these bullshit "discussions;" people can clearly see there is little or nothing to discuss about "I hate..." and will be less likely to waste their time. Let there be venting spaces separate from discussion spaces.