// Easily say "Good to see you" to all attendees after a meetup

// Go to the Event page, and make sure you've loaded all the attendees
// by scrolling down and loading them all.

// Then paste this into your browser's console

var elems = document.getElementsByClassName("D_submit");

for(var i=0; i<elems.length;i++) {
    if( elems[i].tagName.toLowerCase() === "a" )
        elems[i].click();
}