You know, if you swapped 'platform/device in that post for religion/philosophy/world-view, you could post it on any liberal theology forum.
I wonder how much of that is because some people have come to believe that that sort of language and content is the norm for internet communication. I have certainly met people who were perfectly pleasant in real life who mutated into monosyllabic flamers in front of their screens.
One of the ways Maemo.org can reduce it is by encouraging the Meet-ups. People are much less rude once they've met you.