Manual:$wgBlockAllowsUTEdit

User rights, access control and monitoring: $wgBlockAllowsUTEdit
Allow blocked users to edit their talk pages
Introduced in version:1.5.0 (r10003)
Removed in version:still in use
Allowed values:(boolean)
Default value:true (1.26+)
false (1.5-1.25)

Details edit

Set $wgBlockAllowsUTEdit to true to allow blocked users to edit their talk pages (so that they can request unblocking, for example). This will add a "Editing their own talk page" checkbox on Special:Block, unchecked by default (see Manual:Block and unblock ). If it's set to false, the checkbox disappears.

See also edit

Basic user rights and block settings: