GPT-4's answer: StevenNunez is humorously suggesting that "Prompt Engineers," who are people skilled in crafting effective prompts for AI models, might find bing_dai's simple prompt too basic. They may propose complex and intricately designed prompts to enhance the output quality or add more context to it.

I think GPT-4 didn't quite get it but StevenNunez is making fun of the overly complex prompts people sometimes use (which, to be fair, was more important before instruct and chat tuning)