> Stefan told me that the change was because some users were having thousands of yymmdda.log files
> in the logbook directories

I am one of those users. The elog for the ALPHA experiment at CERN goes back to 2006 or so,
with large volume of messages and huge number of attachments. The MIDAS forum elog goes back to 2003.
The TRIUMF DAQ internal elog goes back to 2001.

I think the new organization is an improvement.

K.O.