> I almost always leave a comment on each PR I review, even just observations: “This class is getting big, we might want to consider adding a presenter,” or praise: “Thanks for cleaning this up!” Things like that I'd much rather leave as comments in the code, rather than dangling as off-hand things in some unrelated PR. Probably no one will see those PR comments unless they go splunking for some reason, but having th…
This is accurate, but it's still an important check in the communication loop. It's not all that uncommon for two engineers to discuss a problem, and leave the discussion with completely different mental models of the solution.