I’ve been posting in the "Who wants to be hired" threads occasionally since they started (somewhere in 2014 if I recall correctly) and have been doing so monthly recently. I'm also including a basic Q&A in my posts. I've varied the tone and content a bit over time. It's not an A/B test, just an attempt to keep things entertaining.
You can find my recent post here: https://news.ycombinator.com/item?id=20326583
What each month brings is very diverse. Companies are of all shapes and sizes, from different locations and different lines of businesses. It's fairly interesting by itself. I've gone through multiple interview hoops through the years and those tend to also be very diverse. I've done HR chats and tech chats, phone screens with code and phone screens without. I've done take-homes and I was twice flown to on-sites. There is also a fair amount of spam, canned recruiting emails and the automated "CTO bait-n-switch", but the overall positive far outweighs the negative in my mind. If you are considering to post - just do it.
I've learnt a lot from those postings. Reaching out is not easy and I'm thankful to whoever does. My main take-a-way is this: by reaching out, a person shows that they are the proactive kind who cares for their organization and tasks. That fact by itself is a very positive signal to me. I'm thus always trying to put best effort into whatever organizational recruiting process follows.
I have yet to be hired as a result of those posts.
P.S - ... but that one from last month that is still in process would be perfect for me. Especially if it goes south... ;)