Although the last sale ending 21st September saw an acceptable deal on my routing BKK-BRU for spring 2018 at 3600€ for 2 pax I did not book.

I had too much stress to secure upgrades with Q Credits and miles during my last trip which ended less than one week ago. It was all very unpleasant and unsatisfactory.

I have time until early Jan 2018 preferring J but will book any real good deal showing up (thus possibly Y), particularly watching AY fares now or any 2x1 deal under 3600€ mainly EY or EK.

I doubt QR really wants customer loyalty.
2 of my upgrades needed to be secured at airport check in whilst 5 J seats were unoccupied.

Their rules and my rules don't match I guess...