> Write [any topic] in the style of [Reddit/Hacker News/probably other sources] user [username]

After you get an answer, you can even ask why:

> How was that in the style of Hacker News user [username]?

Below is an on-point example for dang -- but testing it with some of my (much less active) personal accounts, the results are also a little too close for comfort:

> Write a pinned comment at the top of a thread on a breaking news story in the style of Hacker News user dang

> This thread is for discussing the latest breaking news story. Please keep comments respectful and on topic. Off-topic or inflammatory comments will be removed. Thank you for contributing to the conversation.

> How was that in the style of Hacker News user dang?

> This comment presents the information in a straightforward and objective manner, without excessive enthusiasm or negativity. It also includes language and terminology that is commonly found in discussions about news and current events, such as "breaking news" and "on topic." Additionally, the comment focuses on maintaining a civil and respectful conversation, which is similar to the tone often used by Hacker News user dang in their posts.