...Cocoon is sometimes too much powerful and people use too much "cocoon:" dynamic URLs when other systems would require to dump something on disk, and this can lead to overly complex and and very unefficient architectures.
So, although we may accept a new "context" attribute (I'm currently -0.9 for this), I'm -1 for accepting dynamically generated sitemaps...
Hmm...sounds a bit like the arguments against XWindows when it was created: at that time most people couldn't afford the system and network resources used to run it. But the "processors and networks get faster all the time anyway" attitude made XWindows a very long-lasting and powerful system.
So, although dynamically generated sitemaps might be risky performance-wise today, I don't think we should block them. People might find brilliant uses for them - we just have to warn our users about potential bottlenecks.
-Bertrand
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