A doctrine is a just codification of beliefs:
A doctrinal tradition is the framework for those beliefs:
- Roman Catholicism
- The Church of Jesus Christ of Latter-Day Saints
The FAQ is saying that every doctrinal question needs to specify the doctrine ("Satan punishes those who reject Christ after death") to ask about and a doctrinal tradition ("Southern Baptists") to scope the answers to:
- What does the Protestant BibleDoctrinal Tradition say about Satan punishing those who reject Christ after deathDoctrine?
- What is the Roman Catholic stanceDoctrinal Tradition on praying to those outside the TrinityDoctrine?
- Do LutheransDoctrinal Tradition believe Heaven existsDoctrine?
I went into a little more detail about why this is on another question, but in short without that extra scoping context, the questions aren't very testable (anyone who claims to be a Christian would have a correct answer).
The question doesn't really need to be about your beliefs, just what specific beliefs you want to know about. I suspect the edits done to your question were meant to do that, not highlight your beliefs for no reason: that is, to scope your question down to just the Protestant Bible, not every Bible out there.
While doctrine I think is pretty straightforward, "doctrinal tradition" is a bit verbose and apt to confusion: I think it should be replaced with "scope" or something similar.