You posed the open question of whether "arguing" was bad.
In response, I attempted to differentiate between (my interpretation of) "arguing", in which the participants simply state their positions repeatedly with little or no regard for anyone who disagrees, and "discourse", or "discussion", in which the opinions of all participants are equally respected, and which carries at least the possibility that points made will be considered and there is a potential for eventual agreement.
My citation of the IP forum here was germane to my point because, despite many threads being carried on for literally years, often by the same group of participants, not a single opinion ever changes.
Making for a particularly dreary and dispiriting endeavor.
As far as the concept of "freedom of speech/expression" I hope it's understood that there's no such thing, here or pretty much anywhere else on the Internet, with the possible exception of some government websites.
Just like the real world, this site, and almost all others, are the online equivalent of Private Property, with the owners fully within their rights to define what forms of expression are and aren't acceptable.