Last modified: 2011-05-15 21:03:51 UTC
This was the first suggestion on bug 27287, which then changed path, so perhaps a new bug is the way. Until r85128 is deployed, it makes no sense to keep $wgLogAutocreatedAccounts set to false: such configuration doesn't fix any problem and is very annoying, see bug 19161 comment 46 and bug 27287 comment 17. The issue is IMHO quite urgent: for instance, welcoming is not working and I see 50 % less new users on some sister projects.
Not necessary anymore, I deployed r85128.