Let's dissect a couple of these assertions as I think its inaccurate to say I am presenting evidence in "bad faith."
First of all, we're talking about "common expression" as in common on the forum; not what is yielded as a Google search result. On the forum, there's exactly 8 instances of "maximum benefit of the doubt" that can be found, 4 belong to QS and 1 belongs to PN7. Not exactly a "common expression."
Yet on the forum, there's only 13 accounts that have ever used that phrase, and 2 of them are QS/PN7. 13 users out of thousands.
None of the examples provided are "common", though some are more common than others.