OK, not meaning to cause controversy! Although I asked the question in the open, people who wanted to be discreet about their own interests could just reply (and some did) as a PM, and by asking in the thread the question does reach a lot more people than approaching individuals....
Anyhow Dodidoki, was not intending to criticise (or prompt a criticism of) your starting of the thread in any way at all. And as far as the plantlet goes, my initial thought was that it's overwhelmingly likely to be a stoloniferous growth, until proven otherwise anyway. Many Paphs do this as we know. However, if you say it is on the tip of a root with (presumably) no stolon in sight, I guess it must be a seedling. It would make some sense if the roots of this plant have a mycorrhizal association, which may aid, or even be necessary for, germination of seed. Such a situation would be the norm for many of the temperate terrestrial orchids I've grown, not sure if this is usual for Paphs though.