Thread:Project:Support desk/How to set up a deletion deadline limit?

I got a strange Administrator who keep trying to mass delete all the old articles in my wiki. I would like to set a limits that articles older than 1 years (create day or last edit day) will be auto-locked. So Administrators will not be able to delete that page.

That guy is a great manager expect he always tring to delete articles for strange reasons. I do not want to kick he out, but really want to limit his deletion rights.