I doubt that doing this would cause conflict amongst this forum like it did on the 'other forum'. As people say above, the conflict over there was due to many other reasons, and the movement of topics was just the 'icing on the cake'.
Great idea VC, it gets my vote
....Exactly.
IIRC, what tipped people over the edge (which they were balancing on anyway) was that the Mods didn't say what they were doing - At least, if they did, it wasn't loud 'n clear enough. But it wasn't directly the Mods Hurdy and Phil's fault - they had their hands tied so to speak. So, communication is the key.
I bet if the site admin post a big enough notice saying words to the effect: "Hi guys, we think that everyone would benefit if we create xxxx areas for x,y,z and we ask you to bear with us and please accept that we may move some existing threads into these new areas. It's all part of our efforts to improve the site and make it an even better resource for all of us - Many Thanks" or similar....I bet that no-one will throw their toys out of their pram.
I'm just expressing my opinion as feedback for you and naturally will accept your decisions [after calling you all arseholes and sulking - Just joking].
Stealth is right that it doesn't want to be over complicated, but it needn't be if you work it out carefully.
HTH,
Robin