Actually it is intentional :). There were two reasons 1. If someone was that interested in liking an entry, there is no harm done as of now, as there is no ran

Actually it is intentional :). There were two reasons 1. If someone was that interested in liking an entry, there is no harm done as of now, as there is no ranking as of yet. 2. Evil idea: If someone likes an entry multiple times, it gives an impression of more users :). Reddit apparently started out like this. The founders had multiple accounts and posted stories under various accounts to show activity.