It seems to me that within a bdsm chatroom, people tend to fall into traditional role behavior. When you're lucky enough to find someone interested in talking to you about you... it's refreshing.
That kind of conversation will lead to you two determining your natural pecking order and if you're both comfortable with it, you will find yourselves having a much more successful online relationship that if you had just fallen into your traditional online roles.
Realize you may or may not find yourself in a role with which you are familiar, but regardless you might find out you're happier.