What's the advantage to mirroring this data locally? The System Log only records the User IDs anyway. If you want to look up who a user is, copy & paste the User ID into your LDAP Client / Org Chart / Teams / eMail client, and you should get the information you're looking for.
I agree about the Enhancement Request, but spend the time to think through how it would be implemented and what features you (and other CMOD customers) might want.
-JD.