On Techcrunch or other blogs using Facebook comments, I noticed that your job title displays next to your post. Is there any way to limit the privacy settings so it only displays to friends versus public and does not show up outside Facebook?
Sure. Just edit your profile (or timeline) and change the privacy setting next to your work info to "Friends". The same setting controls its visibility both on your profile and on third party sites that use Facebook Connect.
Check the comment when you're not logged in to Facebook (or from a different browser), and you'll see that the sensitive info isn't displayed.
As mentioned by @mark4o, the privacy settings within the info section indeed takes care of managing your identity.
Be sure to first check whether your info is available by using the "view as" feature.
A second place to do testing is the comments plugin documentation page. Have two windows open, one as logged into Facebook the other not.
For example here is my profile set for public
where as to friends,
Now writing a comment to TechCrunch
Notice I am logged into Facebook so it is pulling all the information as it would be silly to hide information from myself when logged in.
Watching the same page incognito.
You can see the comment for yourself.
Just noticed it myself. You can indeed check this in incognito modus (chrome), check what info you still see (like town, or company/work), then goto your ABOUT section in facebook and change the setting of privacy (url is https://www.facebook.com/YOURUSERNAME/info ) and change setting from 'public' into 'friends' or whatever. Then refresh the screen in chrome incognito and check what's still shown. Also change that in the ABOUT section and so on.. Mine only shows my name now!