it really depends on the officer / shift boss / etc. I wouldn't rate BKK as an easy airport, quite the opposite. DMK? No idea, really - I was never properly questioned there, but I flew into DMK internationally only six or seven times in the last 15 years.
My point is that recommending one airport over another is ungrounded speculation.
I do hundreds of QR payments a month, the average rate of the problems you described is probably 2-3 times a year. Then I just switch from Krungsri to Bangkok and the problem is solved
prevalence of dark roast is a problem indeed. I’ve tried dozens of brands/varieties and most of them suck or overly expensive or both. Now I just get Boncafe beans of Morning/All Day variety - it tastes good and available at any Makro
this is the silliest list I’ve ever come across. I’ve lived in Russia, Europe, South America and Thailand, have been married to an American for 10y and still had to google every item and then ask myself why on Earth would I need that lol
once I got fined 500 baht for less than 24h overstay at Suratthani airport to my great surprise. Got away without any fine at Suvarnabhumi a year or two before that in the same situation, go figure…