Yes, i'm puzzled as well. I suspect it was her choice due to something that upset her? As I don't think they would have simply deleted her account. But I don't have a clue what happened.
Would be happy to see Indigo back. Honestly, we on this board don't always see eye to eye on different things, but we are basically a supportive group and I like to see different viewpoints on things here. I think it's more informative and thus more helpful to everyone. I sincerely hope Indigo didn't leave because she felt she was not supported.