Another thought. You have your nsec in a well established client. But nostr moves fast, what's well established now might be dead, obsolete, or broken and unused in 3 months as people tend to switch clients rapidly, esp on Desktop. What if the dev of said formerly well established client is salty and frustrated because ppl dropped his client in favor of the next thing the influencooors told them to use and stops working on it? What if the client never deletes your nsec? What if the dev goes rogue? What if the dev hands the server to someone less who has bad intentions?