I checked out you journal after writing the above post. It may me feel a bit relieved. But still, I'm a bit uncomfortable with the mold.
Same here, that's why I scooped it off with a spoon, and am letting the full pot dry out in between watering sessions. We'll both have to see what happens, it could well be that this is a species ( feeding off decaying organic matter ) that can survive only on soil, and if thats true won't effect the plant itself. I'm hoping that is the case.