I really wish these threads were more active -- and received more upvotes -- relative to the "Who's hiring" threads, as it seems like the signal to noise is so much better, and also seems like the success rate would be quite a bit higher.
I'm not sure if a) people aren't aware of the threads, or b) people don't have confidence in their success rate.
But as someone whose career -- and as a result, life -- got a big boost from it, I highly recommend anyone considering a move to try posting there. Seems like it could only help!
[1] https://news.ycombinator.com/item?id=7685170