Disclaimers I m hardly an expert on php the sum total of my experience working with SQL or any other relational database is a two hour introduction ten years ago and my knowledge of Mediawiki source is limited to about fifteen minutes of grepping the source the last time this came up on WP AN it should be in the general archive Furthermore I don t know why it was disabled though I can think of at least one very good reason it encourages vandals to create a great deal of throwaway user names I m also on wikibreak for the forseeable future I m much more likely to see and respond to email than talk messages That said The feature should be able to be turned on without fuss by a developer with shell access setting the wgOnlySysopMayMove configuration variable note that it doesn t do what it says it does This will prevent page moves by any user who is one of the 1 of most recently created user names and is not flagged sysop or bot It should be trivial to alter the above requirements they re in includes User php function User isNewbie such that a different percentage of user names is prevented or indeed that only sysops are able to move however there are no configuration variables to control this so it might be disallowed depending on development policy Making a certain number of edits be a requirement should also be feasible though it would be less trivial The query could be cannibalized from Kate s tool if nowhere else