Most people who make ridiculously long names with no surname are surely going to make even longer ones with a surname either to grieve other players, think it's funny (at the time) or just doesn't care, i feel my name and surname have a natural feel (Kaminto Komouri) to it, but there are only a handful of us that don't mind trying to pull that off, i agree though that the surname should have been optional, but if SE doesn't want to change this, why not make a radial menu when you target and click on a player and have a tell option within that, i swear the old SE team claimed they did research but I'm not seeing any of it so far...