I am noticing the same thing. We have a File Geodatabase that is used as part of data sharing between agencies, and is updated by a script nightly. What I have found is that even though I delete the previous feature class, the "record" stays in the file structure. Looking at the files within the gdb folder I see "a00000009.gdbtable", "a00000012.gdbtable", "a00000014.gdbtable" are all about the same size, but have a one day different in the date modified. So every night by database basically get new data added, but the old data lives in the shadows. I have tried both compress, and compact and they make little to no difference. Has this been reported to esri?
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