Last modified: 2013-10-23 18:17:00 UTC
At http://mediawiki.org/wiki/Extension_talk:$wgBlockDisablesLogin, it appears that an anonymous user has found a bug in the software. Apparently, while logins are disabled, read/write access is still granted to a user blocked with this setting set.
Do you mean that existing logins remain valid? ... fixed link: https://www.mediawiki.org/wiki/Manual_talk:$wgBlockDisablesLogin
No, the user login is denied, but as an anonymous user there is read/write access.
This is the correct behaviour, that setting doesn't disable anonymous read/write access as stated on the page: https://www.mediawiki.org/wiki/Manual:$wgBlockDisablesLogin
No, the behavior apparently is that the user who logs in, after a failed login, gets read/write access ''but where anonymous users shouldn't get it in the first place'', i.e. $wgGroupPermissions['*']['read']=false;.
I've tested this in a few ways with my blocked account on internal.wikimedia.org and it works for me.