Challenge 2: A Comment vs. a Silent Tracked Deletion — Solution Walkthrough

Why a Comment was the appropriate tool:

The colleague had a genuine QUESTION about the content — "should this
mention Q3 numbers?" — not yet a decided edit. A Comment is
specifically for exactly this: raising something for discussion
without touching the actual text at all. The paragraph remains
completely intact and readable while the question sits visibly in
the margin, and whoever owns the document can respond, resolve it, or
make an actual edit afterward based on the answer.

What would have been lost if they'd instead deleted the paragraph as a tracked change with no explanation:

The document owner would see a struck-through paragraph and be forced
to guess WHY it was deleted — was it because the numbers were wrong?
Redundant? Simply disliked? A tracked deletion records THAT something
changed and WHO changed it, but carries no explanation of the
reasoning behind it. The owner would either have to track down the
colleague separately to ask, or make a judgment call accepting or
rejecting the deletion with real uncertainty about whether it was
the right call — exactly the kind of ambiguity a Comment exists to
prevent, by keeping the "why" attached directly to the "what," in the
same place, without forcing an edit before the underlying question is
even settled.

WHY THIS WORKS AS AN ANSWER
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This is a direct illustration of this chapter's own distinction: a
Comment is for discussing content; a Tracked Change is for actually
proposing a change to it. Using the wrong one for this specific
situation — deleting first, explaining never — would have replaced a
simple question with an ambiguous, unexplained edit that creates more
back-and-forth than it saves.