from bash cheatsheet: > Multi-line comments use :' to open and ' to close what kind of mockery is this? what about using comments for comments? have I been un

from bash cheatsheet: > Multi-line comments use :' to open and ' to close what kind of mockery is this? what about using comments for comments? have I been under a rock for too long? How is passing arguments to ":" builtin called comments, especially if it resets return status to zero?