From WikiApiary, tracking MySkin and over 3,200 other skins

Name: MySkin (ID: 11827) Default skin image
Author(s): No authors provided.
Description: MySkin was of the skins which is bundled with MediaWiki by default. It was a lightweight Monobook skin without CSS. The idea was that the user customises it using user or site CSS. It was removed from MediaWiki Core in version 1.22
Tags: obsolete, removed
Related extensions: This skin has no related extensions.
Derived from: This skin is not derived from another skin.
Website count: 6155 (33.19%) (Skipped on 26 sites.)
Websites using as default 1
Websites skipping it 26
Segments Day: 4 Hour: 19

MySkin is default skin on websites:

MySkin is an available skin on websites: