I've noticed this for a while, but just now pointing it out. On the short Emoticons list right to the left of the post box, there is the rolleyes smilie. Then under "View more Emoticons" there is the ROFL smilie. Both are , but only the ROFL guy posts. In other forums I'm on, they use :rofl: and :rolleyes:.
I know, I know... it's a really serious issue here! I'm surprised this board made it so long with this problem! Thank me later.