I'm not proficient at linking to websites.
"if you could specifically identify a violation, as opposed to casual cockpit language and perhaps poor phraseology, perhaps it'd help me and others to agree with you based on the facts."
I already have. The Captain and First Officer swapped seats during their departure climb. The first officer in this mishap was not rated in the RJ he was flying. Therefore, he was not authorized to occupy the left seat on this flight. They didn't return to their proper seats until the aircraft was descending through 10,000'. Think about that for a second. You are in a rapid descent from FL410 through 10,000'. Both your engines are flamed out. It is dark outside and in your cockpit. You've been on oxygen because the cabin pressurization failed when the motors quit. And at that point you both have to unbuckle your seatbelts and do a Chinese fire drill to climb back into the seat you never should have left. Now read FAR 121.542 and FAR 135.100 concerning the "Sterile Cockpit" rule below 10,000'. Here is a quote from those regulations...
"(b) No flight crew member may engage in, nor may any pilot in command permit, any activity during a critical phase of flight which could distract any flight crew member from the performance of his or her duties or which could interfere in any way with the proper conduct of those duties. Activities such as eating meals, engaging in non-essential conversations within the cockpit and non-essential communications between the cabin and cockpit crews, and reading publications not related to the proper conduct of the flight are not required for the safe operation of the aircraft."