Thanks Ken for these tools. They are great.
Every time I use advisory mode to check out potentially lingering objects in an environment I get a pretty good crop of false positives in the event log results for deleted items that have been garbage collected in some places but not yet in not others (expected).
I usually hack together a script (someday I'll learn to keep track of these) to run garbage collection (when appropriate) on all DCs of interest just prior to running advisory mode. This improves S/N ratio in the event log results.
Rather than using a hacky script for this, I thought I would suggest that this would make a great (optional and off by default) feature in the main line ReplDiag tool. It would certainly make my and my customers lives easier.