Before I like one all the posts with likes will say "1 person likes this" "6 people like this". So when I like one of them that has one it will change from 1 person to "You and Iguanidon like this".
Makes me thing something just needs to be rebuilt. I mean the likes table stores the userid so not sure if the like names are usually cached somewhere like the post cache or something. Been rebuilding everything so far nothing.