My own 2c...
Back in the olden days, there was one Amiga, and it was Good. Amiga owners stuck to Amiga sites, Atari owners to Atari sites, and there was healthy rivalry between the sides. Most of the sane people treated it as a bit of a joke, same as it had always been right back to the 8-bit days when Spectrum and C64 owners would taunt each other in the playground.
These days, however, the name "Amiga" encompasses no less than four systems, and Amiga.org attempts to cover all of them. The result of this is that each 'camp' is within the same forum. So, the fighting is the same, but this time it's all within one forum instead of between fora; hence, it looks like in-fighting, whereas before it looked like partisanism.
For myself, I subscribe to A.org for classic Amiga hardware and older OSes - my interest in A500s, A2000s, bridgeboards and the like is satiated here - I go to AW.net for software news and high-end Amiga stuff like my A4000, and Amigans.net for OS4 on my A1 or A4000. Aros-exec.org does fine for my AROS needs, MorphZone.org for MorphOS. I would never go to Amiga.org for a MorphOS statement any more than I would go to MorphZone.org for an Amiga question.
I realise that A.org tries to be a forum for all flavours of Amiga, but in my experience it doesn't work - and won't work for as long as the MorphOS fans jump on Amiga threads or Amiga fans jump on MorphOS threads.
The parallels to religious sectarianism are many, and in much the same way as the whole world would get on better if we all learned to respect our differences and choices rather than push our own belief system on others, so the same applies here. It's like you have a forum about Christianity.... you all want the same belief but the Catholics and the Protestants will never see eye to eye.
OK, maybe that was a bit more than 2c.
Edit: just to clarify, this post isn't meant as a criticism, just as an observation. Well, not a criticism of the site, anyway. More a criticism of the people who keep chiming in about how x is better than y in a thread about y.