I actually do see some use for the site, precisely because it has all these limitations. It has a very low learning curve. And if students in a class create them, and are supposed to comment/collaborate with other students, and if you want them to look like a cohesive whole, this actually is a great resource.

But as is pretty clear from my screed, I find that it is really limiting for an individual teacher who has some basic knowledge of the internets (which is a series of tubes) — the lack customization features becomes unbearably annoying.