-As far as I know, we cannot make the window larger than default size. It can make smaller if you press M key though.
-I heard that we players can delete the own character by reducing karma of the character. Your character can reduce the karma by stealing items in the town. But I do not know whether you can re-use the name of the character whom you deleted by this way.
I was one of active player until several weeks ago. However I don't play it now.
I made a new character and raised LV to 3 and changed my portrait. But it was returned to a default portrait I chose at starting game, when I logged in again after about an hour passed. This problem happened twice. I lost 2000EXP and motivation.