Mary and I have met Diane and even stayed with her once after a London gig. She was a charming host (I think we might have been given her bedroom while she slept in the spare room, but one doesn't ask) and over a long breakfast we put the folk world to rights (as you do). In real life she was much more quiet spoken than you might expect from her Mudcat postings, but she certainly knew a lot about the folk scene over many decades.
I'm sorry to hear she's gone, and rather sad that her death wasn't reported nearer the time it happened, even on Mudcat which often gets the news first.