Over in bug 1161339 I left a drive-by review (left review in Splinter on an attachment that wasn't flagged for me). I replied to a comment on that review a few moments ago. The email notification for my comment says I was added to the CC list for the bug. I would think that leaving a review would auto CC you to a bug, much the same way that leaving a comment auto CCs you. I'm not sure it is relevant, but I watch the Core :: Build Config component and see all bug activity there. A CC wasn't explicitly necessary in this case. This behavior doesn't pass the smell test, so filing a bug.
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