I put my LI profile to "open-to-work" on Monday and had three requests for interviews from various companies/entrepreneurs by Sunday.

The next week, I had at least 4 inquiries about my job status and interview availability. After the 1st two weeks, my email inbox was full of potential jobs/recruiter spam, which I sorted through and followed up on.

I'd agree about most being low-value leads, but getting your resume out there seems to attract all sorts of companies. Sure, I don't want to be a QA or SDET engineer, but my resume helped attract opportunities that I would have followed up on had I been more desperate.

You also have to assume that most recruiters are lazy and are doing the shotgun strategy as well.