Thanks for your insight. So in summary, Moosh is the only (technical) tool against this kind of data hoarding.
P.S. Sorry for the lack of general communication. I have said too much - I'm in eco-mode now. ;-X
Well, moosh isn't the only ... you already figured that out. Moosh is, however, the only efficient and accurate way to re-claim space in a crunch.
And to be honest, a combo of web based admin and cli appears to me to be the most efficient and accurate way to admin a moodle.
My 2 cents, of course!
'spirit of sharing', Ken