[mhdi_kr99]

writing this reply on hackernews is not "doing the thing" bro.

[saulpw]

You have no idea what my thing is and whether or not I'm doing it via this post on HN.

[satisfice]

Some replies I have made in Hacker news I later expanded, refined, and included in my classes or books.

[renewiltord]

In his case, his domain shows up on HN periodically. Like simonw or tptacek, interacting with the audience is doing the thing in his case. Haha. But probably not for the audience!