Firstly, thank you for taking the time to make this suggestion.
Given our previous experiences with off-topic boards we take the stance we have purely out of necessity.
Off-topic board are notorious for being hard to moderate without excessively boosting staff numbers.
Another unpleasant feature is that off-topic 'disagreements' and personality clashes always spill out into the main forums and degrade the 'image' of that forum in others eyes.
So by keeping OFPEC "off-topic free", this site has almost become a place of refuge for addon makers and mission editors, away from the pointless flame wars that rack so many of our brother and sister sites.
Given that benefit, and that we take a hard line in moderating, the forums have maintained a very tight and beneficial focus that has always earned us praise.
In the end, off-topic has always proven to simply be more trouble than its worth.
And on that reasoning, we stay with our current situation in keeping our forums tightly focussed on OFP editing.