I hate GDPR (General Data Protection Regulation), but if we want to server EU user, you should implement this.
May be a simple toast popup every time new user first visit our board?
var cookieToast = new Toast(
{
content: 'This website uses cookies to improve your experience',
timeout: ActivityTimeout,
position: ActivityAlign,
type: 'info'
}, 0);
cookieToast.show();
then add a cookie shown value to check if we should shown the toast on 1st time visit?
Thank you!