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  • This fails to answer the question: why?. The additional information is not universal to Unix-based systems. Commented Nov 13, 2014 at 14:56
  • How doesn't this answer why ? It clearly has a delay because it is set in a file, and it may be different files depending on how you have your system set up(e.g PAM authentication) but this is the default on all linux machines.Unless of course you wanted me to explain how this file is read and how the system processes this and delays the login, which seems a bit out of scope for this question. Commented Nov 13, 2014 at 15:06
  • "Why" in this context means "Why does this feature exist, since it seems like a terrible idea?" (As for why one might think it's a terrible idea, see unix.stackexchange.com/a/213668/176805.) Commented Dec 19, 2019 at 3:31