The debugging information from this notes.ini setting is useful and not too verbose.
It would be nice to be able to just see the results of the ID table analysis without having to actually process the compact though. I'm sure you could use IDS_FULL 99, but I currently have a situation now where I'm sure the size is 100% (ID Table error), but don't want the compact to run due to side affects of replica creation.
This would be useful to build up a history of the ID Table for an application and track its size and schedule maintenance in advance.