This seems like a list of stuff I tell clients when they sit down with only the ideas of how the visitor will access the site.

But 18 man months seems like an awfully long time, but I bet their framework has 10x more features than they use!

If the guy thinks it is just a feature of OSS he clearly hasn't bought much shrink wrapped software. Procomm anyone? try these proprietry programs http://homepage.mac.com/bradster/iarchitect/shame.htm