[Fyren]

By default, if you start a command with a / in chat, that line of chat won't show. For example, if an admin says "/slay foo" then it'll be the same as "sm_slay foo" but no one will see "/slay foo" in chat.

If you turn on that option, then if someone accidentally says "/slya foo" then it will be still be hidden. Normally, it would show because of the typo there isn't a command named "sm_slya".