Let's set a palatable objective

I do not see any problems with aiming at 100%. Obviously in the stationary regime articles created in the last several days would not meet the baseline quality standards, and the community should make efforts to improve them, but it is still 99.99%, much closer to 100 than 90. And I do not think we should recommend leaving some articles below the baseline forever. The should raise up to the baseline or disappear by means of the deletion process.