Was dealing with an issue one of our customers had today. To give context, we provide a smart-account based wallet. Our customer wanted to deposit on Bitfinex ETH, so he sent money and on the other side no money were received.
Deep diving I found this: https://support.bitfinex.com/hc/en-us/articles/214441685-Ethereum-Deposits-at-Bitfinex
We can argue it’s Bitfinex fault. But the reality is that if to track internal ETH transfer the only way is debug traceCall for each block, no one is gonna do that, affecting essentially Smart Contract adoption. This is why I think this EIP is a crucial one around Smart Contract adoption and overall improve UX.