Agreed, more editing does not eaqual more quality, or vice versa. This leveling off (or even contraction) may be a normal stage in the maturity of Wikipedia. A

Agreed, more editing does not eaqual more quality, or vice versa. This leveling off (or even contraction) may be a normal stage in the maturity of Wikipedia. A bigger problem, I think, is that many articles reach a high level of quality, and then suffer a succession of edits that clutter up or otherwise reduce the quality of the article. Wikipedia needs a way to fight this article entropy.