If you click the small heart next to the date and views at the top of the post, the like count updates. I am sharing a fact that wasn't exactly a secret, but feels like one: a way to quietly send me likes without making a fuss. It isn't a new feature; I actually created it early on. I pushed for such a seamless look that it seems no one knows about it... so I'm asking you to please click it... Also, once you click a like, it cannot be cancelled; it only updates. If you click it twice to cancel, you'll just end up being someone who sent two hearts. Just so you know...