Can this private zap be a good way to share a signal handle to start a more private chat than what Nostr has available with dms? Basically, I'm looking for a way to privately share my signal handle to initiate private chats on signal instead of Nostr. Seems like sharing the handle through a lightning payment might be more private? I just don't know if that information is encrypted or if it's just plain text somewhere.
In Damus I have privacy options

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