If I post there with an e-mail address, I sometimes get incoming, usually (not always) relevant interest, sometimes not. I set up a one-off account for yesterday's and got three relevant incoming messages, although I only want to talk to one of the companies.
I also say e-mail me for my resume, which might mean less responses than if I could post my resume and go into my work more. If I wasn't employed currently I would link to my resume, but I am employed.
I did get hired for a short consulting gig off a who wants to be hired thread a few years ago (They wanted an FTE relocation, but I was not sure it would work out, so I suggested I consult for a short period before a FTE relocation and - it did not work out. Probably more my fault than theirs.)
I look at some of these threads and see people says "Technologies: Java, Python, JavaScript, Ruby, C++, C". I don't know if this works or not, my posting is pretty focused. Most people I interview who just list Java programmer have difficulty answering slightly advanced questions about Java, I don't know what someone listing all those languages would know.