A fairly simple snippet for MessageLatency plugin manipulation for Vencord. It doesn't use any Vencord-depending variables so you can use Vanilla Discord to troll others

messagelatency-manipulation.js

;(async () => {
    if(location.hostname !== "discord.com") return console.log(
        "%cPlease run this snippet on Discord!",
        "color: red; background-color: black; padding: 5px; font-weight: bold;"
    )

    if(window.__LOADED_MESSAGELATENCY_MANIPULATOR == true) return console.log(
        "%cYou can only run this snippet once! If you want to change latency, run _changeLatency()!",
        "color: red; background-color: black; padding: 5px; font-weight: bold;"
    )
    else Object.defineProperty(window, "__LOADED_MESSAGELATENCY_MANIPULATOR", { value: true, configurable: false, enumerable: false, writable: false })
    console.log("%cSetting up snippet...", "color: gray;")

    const nonceShift = 14200704e5
    const fromNonce = val => Math.floor(Number(val) / 4194304) + nonceShift
    const toNonce = val => {
        let t = val - nonceShift;
        return t <= 0 ? "0" : (BigInt(t) << 22n).toString()
    }

    let daysDelay = 1337
    window._changeLatency = () => {
        let val = null
        while ( val === null ) {
            const t = prompt(`New delay value? (Current value: ${daysDelay}) | Type "exit" to cancel`)
            if(t === "exit") return
            val = parseInt(t) || null
        }
        daysDelay = val;
    }

    window._XMLHttpRequest = window._XMLHttpRequest || window.XMLHttpRequest
    window.XMLHttpRequest = class extends window._XMLHttpRequest {
        open(method, url) {
            this._shouldManipulateNonce = /https:\/\/discord.com\/api\/v\d\/channels\/\d+\/messages/.test(url) && method === "POST"
            return super.open(...arguments)
        }
        get responseText() {
            let t = super.responseText;
            if(this._shouldManipulateNonce) {
                const json = JSON.parse(t);
                json.nonce = this._originalNonce;
                t = JSON.stringify(json)
            }
            return t;
        }
        send(body) {
            if(this._shouldManipulateNonce) {
                const json = JSON.parse(body)
                this._originalNonce = json.nonce
                json.nonce = toNonce(fromNonce(json.nonce) - (daysDelay * 86400000))
                body = JSON.stringify(json);
            }
            return super.send(body)
        }
    }

    console.log(
        `%cLoaded properly! If you ever gonna need to change latency just run %c_changeLatency()%c in console! To remove snippet restart Discord.%c\n%c🟡 Some messages might show duplicated! But it's just client-side.`,
        "color: #00ff02; background-color: black; padding: 5px;",
        "color: #00ff02; background-color: black; padding: 5px; font-weight: bold;",
        "color: #00ff02; background-color: black; padding: 5px;",
        "",
        "color: yellow; background-color: black; padding: 5px; font-weight: bold;"
    )
})();

i need this