Since the Q&A section is such a important section, people must put extra effort when writing for it. The idea of editors is very good. When a person submits their answer, the editors should go over it and see if it is satifactory. If the answer is good, then the editors post it and give the person who wrote 1 or 2 XP based on its quality. If the "idea" was good but it needed editing, the editors would edit it, then post it, and the submitter would get no XP. If the answer is completely worthless, the submitter would be penalized -2 XP. That is how I would go about since it forces people that submit answers to put more effort into being correct in their answers rather than just guessing off the top of their head.