def finish_registration(reg_handler)
    # What is process type 5? what is the GET parameter that may was passed?
    reg_handler.success = true unless reg_handler.process_type == 5 || POST::get('from_europe')

    # What is this doing?
    MD5 = Digest::MD5.new
    MD5 << POST::get('password')
    reg_handler.registered_user = {email: email, username: POST::get('username'), password: MD5.hexdigest }

    # What makes me liable of opening database from somewhere else and creating a user?
    db = DB::open()
    db.create_user({email: email, username: POST::get('username'), password: MD5.hexdigest })
end

# Does is make any sense to package this logic inside function like that?