Did you recieve 4 hugs or give out 4?? The hug badge registers hugs you've given to others, not how many you've recieved from other members. If you have given out 4 and it only shows one..try refreshing the page or signing out then in again. Try giving me a hug and see if it goes to 2. If a person's not into giving hugs there won't be a counter under your avatar.