PSCmdlet.ShouldProcess output verbose stream even when $VerbosePreference='Silen

I have just found very strong behavior of $PSCmdlet.ShouldProcess(). I want to have it in my advanced function (I want to use -Confirm and -WhatIf) but I don’t want to see it’s verbose stream. I want to see only my custom streams (Write-Verbose). Please do you have an idea what it reason that the function output it? How to disable it?

Thank you,

Function Set-SomeThing {
        DefaultParametersetName = 'Bla',
        SupportsShouldProcess = $true,
        PositionalBinding = $false,
        ConfirmImpact = 'Medium'

            Mandatory = $false,
            Position = 0,
            ParameterSetName = 'Bla'
        [string] $Bla,

            Mandatory = $false,
            ParameterSetName = 'Bla'
        [string] $Force

    Begin {
        # Default:  $VerbosePreference = 'SilentlyContinue'
        # -Verbose: $VerbosePreference = 'Continue'

    Process {
        Write-Verbose -Message 'Something that I want to see'
        $VerbosePreference = 'SilentlyContinue'
        $global:VerbosePreference = 'SilentlyContinue'
        $script:VerbosePreference = 'SilentlyContinue'

        if ($Force -or $PSCmdlet.ShouldProcess('I do NOT want to see this', 'Action')) {

    End {

Set-SomeThing -Verbose


VERBOSE: Something that I want to see
VERBOSE: Performing the operation "Action" on target "I do NOT want to see this".

That’s a hardcoded behavior - you can’t work around that.