On Sat, Mar 10, 2018 at 9:21 PM, Pine W wiki.pine@gmail.com wrote:
- The opt-in "pingback" telemetry from MediaWiki installations, which is
available since March 2017, suggests that there are more than 40,000 unique installations.
Note that pingback only collects data from wikis which were set up with 1.28 or a later version of the installer (and opted in) or where the system administrator manually enabld it; and that it cannot differentiate between "real" wikis and throwaway installations (e.g. on developer machines). So the real number can easily be a lot more or a lot less than that. (WikiApiary tracks about 20,000 MediaWiki wikis, so that's a reasonable lower estimate.)