My answer to the free response question on the Pottermore survey, in case anyone wants to know what I think:
I enjoyed the interactive experience while it lasted, and I really loved the new info from Ms. Rowling, but it felt like I quickly ran out of things to do. There seemed to be a lot of places where more content could have been added--like collecting school books, for example. There could have been excerpts from the books that you could "read", or maybe more ways to use spells from the spellbooks besides just dueling. Or there could have been ways you could use other items you collect. Like, for example, if you collect an item in chapter one, and then there's a way to use it chapter 6 to unlock something else--it would make for little mysteries to solve while you're reading the story. Competing for House Points is fun in theory, but in practice it was depressing for me. I felt like I wasn't sorted in the right house, but I was going to just go with it and have fun trying to earn points anyway. But with Wizard's Duel broken, it was really hard to earn points, and it seemed like no matter what I did my house was always dead last. Then I heard a rumor that a lot of people who were sorted into Hufflepuff didn't want to be there and were just abandoning their accounts--they had other usernames that got sorted into different houses. It just felt really defeating, so I stopped visiting the site after that. Anyway, it would be nice to have more minigames besides Potions, and maybe more activities that aren't necessarily linked to house points. Also, there should be more choice involved in the sorting process--that's how it is in the books, after all!
Joie