why are sub comments sorted newest to oldest?

Why do comments in leetcode go in reverse order of all default comment sorting used by other websites? When someone comments on a leetcode comment, the newest sub-comment appears right after the comment, which means you have to scroll to the bottom and read them bottom up to understand them. Is there a reason for this?

ie:
main comment

  • newest comment
  • ...
  • 2nd oldest
  • oldest comment
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