I want to show buttons on a message, but only allow the original requester of the message to interact with the buttons. If anybody else clicks the buttons then I want to send them a secret message telling them that their click was ignored.

I've been looking into this for a while and I keep finding people saying that it's not possible, but yet the Dank Memer bot already does exactly this! If you click a button on somebody else's message then the bot will send you a message saying "This menu is not for you." and it will say "Only you can see this message"

Currently I have this code

const collector = message.createMessageComponentCollector({ componentType: "BUTTON", time: 15000});

collector.on("collect",collected => {
    if(collected.user.id !== interaction.user.id){
        //collected.member.send("This command is being controlled by somebody else.");
        // What can I put in here to send an ephemeral message to collected.user?? I can send them a DM using .send(), but that's not what I want.
        return;
    }
    if(collected.customId === "confirm"){
        interaction.followUp("Success");
    }else{
        interaction.followUp("Ignore");
    }
});

Here's a picture of Dank Memer doing it... Which leads me to believe it's possible. (He said this in response to me asking for a leaderboard on one account and then trying to navigate it on a different account.)

Please tell me how this is done!