[wendigo]

I think I found something under core.cfg

/**
* If a say command is a silent chat trigger, and is used by an admin,
* but it does not evaluate to an actual command, it will be displayed
* publicly. This setting allows you to suppress accidental typings.
*
* The default value is "no". A value of "yes" will suppress.
*/
"SilentFailSuppress" "no"

This should be yes?

Here is a bit more from my core.cfg

/**
* This file is used to set various options that are important to SourceMod's core.
* If this file is missing or an option in this file is missing, then the default values will be used.
*/
"Core"
{
/**
* This option determines if SourceMod logging is enabled.
*
* "on" - Logging is enabled (default)
* "off" - Logging is disabled
*/
"Logging" "on"

/**
* This option determines how SourceMod logging should be handled.
*
* "daily" - New log file is created for each day (default)
* "map" - New log file is created for each map change
* "game" - Use game's log files
*/
"LogMode" "daily"

/**
* Language that multilingual enabled plugins and extensions will use to print messages.
* Only languages listed in languages.cfg are valid.
*
* The default value is "en"
*/
"ServerLang" "en"

/**
* List of characters to use for public chat triggers. Set an empty list to disable.
*/
"PublicChatTrigger" "!"

/**
* List of characters to use for silent chat triggers. Set an empty list to disable.
*/
"SilentChatTrigger" "/"

/**
* If a say command is a silent chat trigger, and is used by an admin,
* but it does not evaluate to an actual command, it will be displayed
* publicly. This setting allows you to suppress accidental typings.
*
* The default value is "no". A value of "yes" will suppress.
*/
"SilentFailSuppress" "no"