If I recall all threads are closed for new comments after 14 days, it's not specific to "Who wants to be hired?"

Realistically the job threads get eyeballs only the first few days, they're often not even on the frontpage for half a day.

Please read the guidelines[0] and FAQ[1]:

> Why can't I post a comment to a thread?

> Threads are closed to new comments after two weeks, or if the submission has been killed by software, moderators, or user flags.

[1]: https://news.ycombinator.com/newsfaq.html

[0]: https://news.ycombinator.com/newsguidelines.html