Oh man, so much this. I get so much recruiter spam from LinkedIn, I just stopped responding altogether. One recruiter took to emailing and calling me daily, despite the fact that I never once responded to them.

That doesn't make me think you're interested in my particular talents. It makes me think you're desperate and a sociopath who has no respect for other people's time or wishes. If I wanted to talk to you, I would have responded after one of the first 10 attempts to contact me. Get a frickin' clue!