sorry to say but yes, personal preferences, avatars, groups, friends, subscriptions, etc. have to be set up again. each software has its own way of handling stuff like that so migrating all of the details would be excessively difficult and expensive if we could even find someone willing to try it.
i think we're here for the long haul now so i'm happy saying, c'mon in, make yourself at home and get comfortable.
thanks for the shirt order! it'll go out this afternoon.