Part of it is that the print() debug crowd tends to prefer to externalize more of the reasoning into the code itself (rather than into their tooling, or into th

Part of it is that the print() debug crowd tends to prefer to externalize more of the reasoning into the code itself (rather than into their tooling, or into their brains—though sometimes it is the latter, and that can be a disaster coming back a few months later). That doesn't work great on other people's code, obviously.