He's Chinese and if you had looked into his comment history you'd know this is not someone who uses LLMs for karma farming and looking at his blog he has a long history of posting about database topics going back before there was GPT.

Should I ever participate in a Chinese speaking forum, I'd certainly use an LLM for translation as well.

Looks to me like they're using an LLM for _translation_, not for generating a response. The model output even says "Here's the _translation_" (emphasis mine).