There have couple updates on simpleswap that caught my eye. One being separate tickers for usdc on optimism, that being usdc.e and usdc, since arrival of circle's usdc there used to be confusion which usdc exchange is showing and which one I'm supposed to send, so I needed to confirm contract address with support to make sure I make the right transaction.

The other being contract address being shown at the exchange page, it helps you confirm the token you are sending is indeed correct one.