jonkwheeler

// Enter slack in the browser. https://{insert your team name here}.slack.com/messages/
// Click on the channel you want.
// Click the information icon.
// Expand the members dropdown.
// Click "See All Members"

// Paste the next line into the console, hit enter.
var imageList = new Array()

// If your channel has more than 19 members, the list won't display past that. It also unloads them from the state as you scroll.