1) I can highlight your name and hit 'invite'. If the game was not meant to be designed this way, I would not have an 'invite' command until you responded to my 'tell' command.
I fully understand that in your parent's basement, this is not considered 'proper'. However, for surface dwellers, this is a game that is meant to be played with others. I can go a bit further and tell you 'why' you feel the need to demand that someone expend the effort type out a 'tell' message before they have the nerve to simply 'invite', but is that really necessary?