I'm extremely impressed with the Ajax and other technology being used by Wikidot. The service is wonderfully easy to use, the UI is pleasant and inviting (we Mac developers and users know a good UI from a bad one), and everything is well thought out.
This is very kind. We use Wikidot every day ourselves and try to make it practical. There are still many things we need to improve, in the UI and elsewhere.
The Snow Leopard page is not a typical Wikidot site, and shows some problems - e.g. being a single page, there are many edit conflicts now. But it's been amazing as a demonstration of how hundreds of people can contribute to a knowledge base.
A more structured site would put one application per page, use tags to organize them, and show the results as a summary. Wikidot is getting pretty good at this kind of dynamic page management. Gerdami has made an example, here: http://snow-template.wikidot.com/
At the same time, having a single page saved us this time because we were able to cache it as a static HTML page. I've just tried again: as anonymous user, the page pops up in about half a second; as a logged in user it takes about 10-15 seconds.
So, yes, this kind of slashdotting is really good for driving efficiencies and we're more than happy to see this traffic. It was a bit stressful for everyone when Wikidot went down but it'll be faster than ever afterwards.
BTW, welcome to Wikidot. :-)