Why does cake wallet have a "start scanning at a certain block height or date" feature? Is it related to silent payments?
its because monero is a shitcoin and searching for txs on blocks, even in a "light wallet", needs much time because need to decrypt like 1/4 of all the things in blocks to find output related to your wallet. If you remember your wallet has been generated last week, it will take only some minutes maybe.
yes