Filippo and I dug into this a bit more, and it is possible that VSCode auto-complete (which also adds imports for the auto-completed things) is the culprit here

Filippo and I dug into this a bit more, and it is possible that VSCode auto-complete (which also adds imports for the auto-completed things) is the culprit here. Apologies if that's what happened to you. We will look into fixing that. Now that math/rand.Read is marked deprecated, at least if it does get selected, you get a nice strikethrough rendering as well.