I don't think you need to "really" change your approach when it comes to wikis. The more quality control you need the more often you just let the contributor p

I don't think you need to "really" change your approach when it comes to wikis. The more quality control you need the more often you just let the contributor prove themselves first. Meaning, you don't automatically approve their submissions, but you don't completely prevent them from writing either, at least for as much as your community have the resources to review.