LN :
  • channel activity (open, close, splice, loop) still pays fee
  • individual can also spin up routing node (duh)
Ark :
  • Continous boarding txs still pays fee
  • Automated sweep out txs still pays fee
Mercury :
  • Backup tx still pays fee
Drivechain :
  • merge mining
eSats (Fedimint & Cashu) :
  • Onchain minting still pays fee