Would appreciate if you explained why it's spam?
From my understanding, the intent of this posting seems to be about startups connecting with HN readers. With your links, I feel like it's advertising for those companies and these companies aren't genuinely interested in hiring us. If they would be, they would post there. From what I have seen so far, these companies just posted their jobs at your wfh.io and this seems like a growth hack attempt to get traffic on wfh.io.
Anyway, the fact that people do click indicates interest, however since all comments here are negative I'll refrain from making any further posts to these threads. I don't want to tarnish the site in the name of getting some additional clicks.
It goes against the spirit of the thread, which is a company posting that they are hiring. Job boards are spam. Unless you are hiring someone at your company or looking for a job yourself, this thread is of no value to you.
You already know why it's spam.