Hello,
Over the last couple of months I had some different experiences. Two times I upgraded my Q-ticket from BKK to Frankurt with FFM. On both occasions I got upgraded at the Check-in counter to Royal First Class.
The first time the C-cabin was full, but yesterday the C-cabin was like 75 % full (Friday 13), so there was no good reason for this upgrade. The only reason I could find was to make the F-cabin a little bit less spooky (only two more passengers).
I was pleasantly surprised by a funny detail. At the check-in I had been speaking Thai, of which I only have a limited command. Once aboard I was greeted by the Chief FA in Thai as apposed to the other non-Thai people who were adressed in English. When I enquired qbout this, he said he got the information about my Thai from the check-in counter.
Hendrik