You make some fair points about netiquette that people should try to follow on forums.  But we also wanna let folks speak freely here as much as we can.  This place aims to give members room to share views openly and debate stuff.  Sure we got some basics in place - cant have anyone harassing others. 

We need to strike the right balance between keeping things respectful but not feeling too strict neither.  People should feel welcome to say their piece, even forcefully, so long as they dont get personal or nasty.  Some arguments gonna happen but we trust members to police themselves mostly.  If things go over the line, mods can step in.