I am curious about that photo 
, the bottom text
“Prior to 2008 a 3 wire feeder ok…”
I recall an older thread where I had a master electrician wrote that same line “The code to separate the grounds and neutrals first appeared in the code (loosely) in 1999. It was shored up to what it is today around 2008.” and @rmeier2 responded that it is totally false. (this just leads to my forever confusion about when a bond is and is not allowed)
<I hope I did all the hyperlinks and what nots ok, this forum sometimes confuses me how to do all that fancy stuff folks do>