The Michael Jackson peek was a community nickname for an unnatural leaning animation in early CS2. Valve addressed foot pinning in its October 12, 2023 notes.
Clips showed an exaggerated player-model lean resembling a dance move. The visual oddity was entertaining, but it also raised questions about how faithfully the model represented a target during a peek. It was not an official movement feature.
Valve called the corrected issue Smooth Criminal foot pinning. The release note is stronger evidence than inferring a fix from a social-media banner. The old text’s encouragement to learn the exploit has been replaced with a description of the historical issue.
A clip does not prove the bug is reproducible in the current build. When an animation looks wrong, record the build and reproduction conditions. The original image remains below as a record of the community reaction, not a current exploit tutorial.

An early CS2 bug producing an exaggerated character lean.
No. It was a community name for a bug.
Smooth Criminal foot pinning.
October 12, 2023.
No. It shows an earlier build.
No. The release notes document the change.
No. This page distinguishes the historical report from later game changes.
Use the linked original sources and newer Valve announcements.