just burned $3,200 USDC by sending to the all CAPS version of my own solana address. uppercased base58 = still a valid address. lands off-curve. no private key can EVER exist for it. funds are gone forever. my wallet let this happen with zero warning. solscan literally flags isOnCurve=false — wallets should too. @solana @phantom @Backpack this is a one-line fix. warn on off-curve transfers. don't let the next person learn this the way I did.