Honestly If I had to guess.. it was an older woman pantomiming as a younger, more attractive, promiscuous and on-the-go hottie. She created the stumbledore persona (whos identity was that of a scholarly, well-traveled silver fox) to basically hype up her own false identity.
Its like if I (a 27 y.o nerd) started pretending to be a rich, older philanthropist on here and created a second account to role play as a young hot woman and constantly reply to my own posts, just so it seemed like I was popular and attractive.
The weirdest thing? Stumbledore had 2k comments.. if he was an account run by this same woman, thats a lot of dedication..