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I can't see this post as anything but a strawman. Yeah, let's presume that they insulted them and even slapped them before they made that question, why not.

• Closi 6y ago
  It's implied. What if someone that had no idea about programming came over and told you that you could program faster if you used a for loop, without ever reading your code? They probably think I suck at programming, or think a bit too much of themselves. This is a mathematician telling canned packaging experts that they could save money by considering the size of the can.
  • h_anna_h 6y ago
    We are talking about asking though. Like "why don't you just use a for loop? Wouldn't that be faster?" or "I think that a for loop would be faster, why are you not using it?", both seem absolutely fine to me.
    • Closi 6y ago
      I think we are talking about telling rather than asking though. “I told the cat food company they could save money.
      • h_anna_h 6y ago
        I am only defending the sentences starting with "why don't you just" and ending with a "?". I am not defending nor support aggressive ones like the one that you mentioned.