By the way, as one who has only recently become alive to the virtues of PWS and built-in Swiki support, let me humbly state what a big deal this stuff is. The amount of functionality for the effort to build one is amazing, and the extensibility is unparalleled.
I am curious how, in practice, a Swiki performs. In particular, how practical are these things for communities of several hundred people?
And one simple, silly (in the sense I should probably be able to figure this out for myself without much effort) question. Since Swikis keep lots of past information available to support rollback of pages, how do I control the bilge when I am comfortable that I have a stable state? In particular, how can i get my Swiki to dump old information? Will Swiki automatically dump rollbacks after a fixed number of edits?