I simply cannot decide on this, and since I'm in the very early stages of coding this thing, I really need to. I don't want to have to go back and change everything (again because I've already done it once). Do you prefer sites that address members by their username, or have a separate login/username and address members by a #? For example; Neopets does the username thing, whereas Aywas does the # thing. I can see the pros of both. I know that a user ID is required for coding purposes, but I'm not sure I want to use them for things like a link to the profile or something instead of the username. What are your preferences, and why?