I really don't understand why we cannot do this on this forum. MOCing is as big a part of the hobby as collecting, if not - and I might be banned for saying this :D - *more* a part of the hobby than collecting. Isn't this what LEGO is all about, creativity and building? Also, frankly, there is an enormous overlap between collectors and MOCers.
There are many wonderful people on this forum, but I had a bit of 'Dark Ages' with the forum itself. There were too many topics, for me, about buying, sales, and reselling. Getting the most for your buck. While I understand it is extremely useful to post news of sales and new set appearances here, the forum became almost too focused on money. I don't mean to offend anyone, least of all the incredible staff (and top contributors, for good measure) who keep this forum running, but I became disinterested with the spirit and tone of the forum.
I would love to celebrate all of the aspects of LEGO, and I don't think there's a reason it should be disallowed... there is obviously a clamor for it, and those who don't want their collecting forum populated by MOC threads could just turn the MOC category off, of course. A certain thread in particular became argumentative, even mean-spirited, and I can't help but think that MOCs would bring a little more joy to the wonderful people at this forum.