Or perhaps support different "levels" of "encyclopedianess"? At the top are only articles that are of encyclopedia level contribution, then as you go down the rules slacken up a bit. All new contributions start at the bottom, say...level 5, and have to be accepted by editors at each higher level.

That way if a reader doesn't care for the hyper-strict top level, they can view more inclusive information down the lower levels.

If the site grows too big/strict and more levels are needed, it should be relatively trivial to add another level down.