Communal enabling of quality

@Piotrus: about wiki-erosion: it is indeed also dependent on the amount of 'bad edits', on the project size. However, this only determines the erosion rate. So, at the English Wikipedia the erosion rate is higher than on the Greek Wikipedia, because there are more edits (on average of course, having patrolled both projects for vandalism I can assure you there's more vandalism at wp-el than at wp-en at some specific times of the day ;-) ). Sadly, this fact doesn't help. I assume Wiki-erosion is a hyperbolic function with time. It levels the quality of content to a certain level. That level is (in my assumption) directly related to the amount of specialist knowledge in a community. Therefore, even though it will take (on average) much more time to erode quality at wp-sk, the erosion will in the end be way more destructive than at wp-en.