Wow! You did quite a bit of research on this one with the time lines. In my opinion, no one really knows what goes on inside USCIS. I personally don't like the process and the system, but we do not have any choice or any other option. It has to be done this way. Everyone has to go through it.
I did call two weeks ago, USCIS CSC representative mentioned since the rate increased for petitions, a ton of applications were received prior to the increased fees. Therefore they are busy. (back logged)
For those 6 'time line entries' you mentioned.
You can send them a PM. Maybe they can shed some light about getting their NOA1.
I submitted mine on the 22nd of Aug. And USCIS just deposited my check yesterday (Oct 3rd). I still don't have a NOA1 yet , but I do have a case # from the image copy on the back of my check Wellsfargo scanned for online banking.

Just be patient.
Also, who ever checks your application. They can be having a good day and just approve everyone. Or they can have a bad day and just deny the visa. Least thats how I feel about applying for a visa at the Manila, US Embassy in the Philippines. Its a 50/50 hit no miss kinda thing. Some people are just lucky.
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Out of the 6 "anomolies," it's probable that the 3 whose sent date and their NOA1 date are a day apart are either confused or are in posession of damning photos of USCIS adjudicators in compromising situations. Also, tonya & darrin don't have a timeline which makes me wonder where their information is coming from.
roxy & lito may also be confused, and might be listing their "sent" date and their "received by USCIS" date. That leaves 2 entries that are possibly legitimate: Wilaiwan & James (sent 9/10, NOA1 10/1) and Angela & Jeff (sent 9/19, NOA1 9/29).
Anyone who's listed here care to clarify? I'm very skeptical that any September CSC filers have received NOA1 yet, but if someone really has then it would kinda blow the lid off the "we process them in the order they're received" story.
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