Another issue that we ran across: post types with depth > 4 don't display by default. It may not pertain to posts, but might be a good systemwide QC check.
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Cole and I are working on ACERA IA and have run across some things we need to point out to the migration team ... and he casually says, we need to be able to simply flag stuff for review.
YES PLEASE!! :)
And maybe even different kinds of flags.... content, design, tech ?
Consider adding a tab within "Manage Content" with these "flags"/"warnings". This could be implemented in training and project very easily.