- Send warning mail to Sysop (who solicited it) when a user modify some
pages in strange ways (articles size seriously reduced, too many articles modify in a short laps, ...)
Hmm...
Or more simple : If a big sized article become very small, just display this update in red (or something visible) in the RecentChange page.
The problem is that the french Wikipedia is not as visited as the english version. We are afraid a vandal act when nobody is logged there.
Aoineko