Memo transaction

Post memo For LiquidBTC that is correct. You have to trust they (the 23 (I think) exchanges responsible of Liquid) won't scam you. It isn't correct for LN because the cryptography can't scam you
Reply to memo 512161bea42fc9c56e83b108392bacb7f5b57fc78d1dafb0f1b43b31a6d68fea