Sam2, they don’t!
Please don’t look for offense where none is being offered.
I can’t speak for AvramMD (obviously) but I don’t think these questions are meant to offer guidance only with regard to BT’s.
Insofar as the inquiry was made regarding a particular person JK is dating, AvramMD gave an answer to the OP’s question about a BT.
With the possible exception of #3 (which may apply more to a BT as the case described is more likely to have a negative effect on someone joining the frum community from afar) these are all truly excellent questions to consider when looking for a someone to join with in building a bayis ne’eman b’yisroel.