I really like the upgrades imgflip has made in the time I've been here. Yesterday I sent in some feedback to imgflip about the Viral button, they've already tweaked it. Yesterday the viral button was on everyone's user-images page
imgflip.com/user-images/tipsy_taylor but it wasn't doing the analogous function of the Hot and Latest button on your page (it was all the viral memes, not your viral memes). Since the button is gone from everyone's user-images page today, that makes me think they're putting the time and effort in to fine tune it.