The reality is this information is easily accessible on LinkedIn. Even if someone hides their current place of employment, LinkedIn's recruiting tools actually let recruiters see that information (one of the reasons we receive so much recruiter spam).
Companies that want to build great teams need to start thinking more offensively than defensively. If you have a great culture and solving interesting problems, recruiters wont pose a threat.
I'm like donretag in the sense that I also seek to minimize my online profile as much as possible; thus, I don't use LinkedIn.
So no, the reality is not that it's easily accessible -- unless you're already making it so on sites that are liberal with sharing your info like LinkedIn.
"information is easily accessible on LinkedIn". Unless LinkedIn has some psychic abilities, LinkedIn only knows what I voluntarily add. My LinkedIn profile contains only company names, dates, and titles. No descriptions. No StackOverflow. Github is used to share code with those I know, not some vanity site.
I work with an amazing team, but you won't find us online (except for mailing lists or slides from talks).
Coderwall never exposes personal contact information of anyone on the team, so the exposure is no greater then having a GitHub profile...probably even less.
That's cool, I was mainly just commenting on the LinkedIn aspect. Monster.com was probably the biggest mistake I ever made, it took 5+ years for my info to get fully removed there (or at least for the random spambot recruiters to stop spamming me).
Companies that want to build great teams need to start thinking more offensively than defensively. If you have a great culture and solving interesting problems, recruiters wont pose a threat.