You have sender privacy with Lightning.
This feels like a solution looking for a problem. I don't believe that my atomic swap provider, nostr:nprofile1qqsqcdcltmv4qanpx3p7svcufdsg9rkk00x7l2sknra4e6whkv59l7cppemhxue69uhkummn9ekx7mp0qythwumn8ghj7un9d3shjtnswf5k6ctv9ehx2ap0qywhwumn8ghj7mn0wd68ytnzd96x...