A group I created is totally boned because I entered someone's name twice into all expenses. Create a clean way to correct this mistake.
I can add dummy expenses to settle the redundant person's debt, but then I also can't modify any older expenses that involved the redundant person. It also looks weird to anyone else who sees strange expenses to settle that person's debt.

Hey Byron – very sorry for the trouble! I imagine this is pretty frustrating, so I’ll definitely pass on the feedback at our next team meeting.
For now, if you email us at support@splitwise.com, we should be able to add the second redundant person back to your account again, and then you’ll be able to edit the older expenses that involved that person (after which you can delete the person again). Again, sorry for the confusion!