Is it common practice to display fake realtime numbers on the homepage?

let storedNumber = getCookie("countingNumber"); let startNumber = storedNumber !== null ? storedNumber : Math.floor(Math.random() * (10300000 - 10000000 + 1)) + 10000000; let currentNumber = startNumber; function updateNumber() { let randomIncrement = Math.floor(Math.random() * (275 - 101 + 1)) + 101; currentNumber += randomIncrement; element.textContent = formatNumber(currentNumber); setCookie("countingNumber", currentNumber, 7); // Save number in cookie for 7 days } element.textContent = formatNumber(currentNumber); setInterval(updateNumber, 1000);