Hmm... I think we need to conduct some exit interviews to gather data before we start making any assumptions.
"Hello, you have selected 'Delete Account' is this because you are a Nazi?"
Y/N (circle one)
"You have selected 'no' and yet you still wish to delete your account? Why are you lying about not being a Nazi then?"
Yeah, I wouldn't be surprised if duplicate accounts are a part of this but that seems like it would be a natural part of growing pains for lemmy. The way the fediverse is built would suggest that people who are serious about long-term participation may bounce around a bit. For example, I joined in June but in that time I still managed to test out two other instances before settling on a third that seemed to strike the ideal balance between admin policies and reliable uptime to suit my needs.