Bloggers Need Not Apply
I have been, in the recent past, a corporate executive, having the more-or-less final say over who does and does not get hired in the engineering department. As a matter of policy, I never checked blogs or did any other kind of non-work-related background check. I would consider doing so a gross invasion of the candidate's privacy.
Might such a check reveal important information? Perhaps, as the pseudonomous coward "Ivan Tribble" reveals. But everyone has to work, they have a right to work, and they have a right to be judged only on the basis of what they do at work.
For many years, as an non-executive engineer, I categorically refused to take drug tests—it's none of my employer's business what I do outside of the office. I'll never trade my liberty for a paycheck, and I'll never make someone else do so.
It's not up to me to criticize how academia works—and I'm sure academia cares not a rat's ass for my opinion—but I'm proud to freely discuss my ideas and opinions under my real name, and I will never ever be a part of academia, nor ever want to be a part of it.