616 people seem to have it, but I just met the stated conditions and remain badgeless and afraid.
relevant post here if it matters (and you're allowed to view it)
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A quick survey of recent recipients of the "Disciplined" badge reveals people who received it on June 14th, 13th, 12th and earlier. So it's not on a bi-weekly cycle or anything like that.
However, there doesn't appear to be any Disciplined badges awarded more recently than June 14th at the time of this post. I'd speculate that the badge is either broken or it requires some kind of manual action that has not been recently performed.
As of 8 July 2009, it looks like the Disciplined badge is being awarded again. There are now 883 people with the Disciplined badge, up from 616 yesterday.