Account deletion is basically setting nane as "nobody" and putting `"deleted": true` into your metadata so the nsec could not be used in certain client like damus / plebstr 

 This was a condition of the iOS App Store. 

 I imagine if she saved her nsec she could restore her account. 

 With some assistance. 

 Cause of Apple App store policy, it is impossible to delete nostr account with all clients except fediverse software