I usually achieve that double WP status just to clip the extra 50k points then push my earning elsewhere.
On board, regardless of cabin, I've been getting the welcome with the CSM (or equivalent) coming up and running through the standard script.
An interesting one ... my first points upgrade from USA to Oz on an A380 ... was in Y (flexi fare) and successfully got an upgrade to J 24 hrs prior to departure.
The experience when on-board was 100% different to everything experienced. I felt like a leper. Let me start with I am always and was very polite and friendly. I had showered in 1st lounge in LAX and didn't board wearing my PJs nor was I drunk or had actually consumed any alcohol in the last 24hrs (just tired from a days work).
So ... here is a summary: No personal welcome. No 'script' run through. General service even felt very different with no 'attention' if that makes sense. Dinner time, the flight attendant spilled wine and just shrugged it off, brought back a wrong dessert etc. And when I did select the Red, he just grabbed one and poured it, yet the pax over the aisle was given a run through of the two different types. It was almost like I was an annoyance.
Come breakfast time, I was clearly awake and tried to flag down breakfast - but was virtually ignored. As other pax woke, they seemed to pick them off and go through the usual positive motions with them. I noticed they were the same pax that got the usual chatter either pre-takeoff or when in the air. Even the chap next to me got the treatment.
Then pre-landing the crew did the usual walk around to pax and had chats i.e the couple behind me got a good long taking to about their journeys etc.
I can only presume it was the points upgrade.
But then on a recent flight to Singapore (after this event) everything was back to normal.
May be I am just overly sensitive. But I presume with the ipad app they can see who are usurpers and who are pure bloods.
NB: The above is just a summary of a recent experience and please do not see it as pretentious rant bla bla bla - it is just a data point of reference .