Just to add to this statement - our check-in process was recently modified to include a form to fill out with evidence that all proper processes have been followed. The form is just a text area field with pre-populated XML in it that we're supposed to fill in. Then the server validates each field, and, if anything isn't filled out appropriately, it spits back "invalid" for each field that's wrong.

I can tell you that this is seriously annoying.

And our product has a key selling feature that involves XML. And, obviously, nearly everyone using it are developers.

Although, on the other hand, it may make things a bit easier when I attempt to bypass the whole thing by writing a perl client that fills all the fields in for me, using LWP.

(I know this is straying dangerously off the original topic, but the lesson is: if you expect frequent modification, simple-to-edit becomes so much more important. And XML ain't it.)