The to-do list also applies to followups - reactions to your code. You get a clear list of what comments other people had on your code, and if you don't want to

The to-do list also applies to followups - reactions to your code. You get a clear list of what comments other people had on your code, and if you don't want to work on them right away, there's no risk they are going to get buried in a pile of email.