Because I know where your house lives! ... or rather which city... which country. And you got very special versions nicknaming people there.
Like Dimka! or Lyovushka.
And since I do not know your real name (and I certainly won't ask nor discuss this via an open message which everyone can read because I value privacy) I will nickname you Darkimska in a sort of russian way even though my vocabulary in Russian only consists "yes", "no", "thank you" and a very certain very prominent beverage. ;-)