I believe there was no reason to block this user. While yes she was a sock puppet evading blocks, it's been a while since she vandalized the wiki. Her contributions weren't even bad as far as I can see on my phone right now. The categories could have been implemented but should have been discussed first.
Back on topic, I am willing to give this user another chance to help and contribute to the wiki.
It's not my say to unblock her, but I would advise it for now, unless you guys have something else to show me that proves otherwise.