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Description
#3 is cool, but it would be preferable to show errors on the /validate page, rather than clicking away to a separate view. These could be hidden by default and expanded on click.
For this to work, it would probably be necessary to slim down the number of lines of XML code that’s rendered. An entire activity / organisation can be a lot of lines of code. It might be better to render ~5 lines either side of the error, and just show that (with a "show more" button to see the complete context).
Via @markbrough.