Running such a farm in Thailand - to me it makes no sense. I have seen farms in Siberia - guy just opens a window, - 30 air going everywhere. I think that is atad of difference +30 or -30.

Propably money loundering, yeah. Nobody can actually prove how much bitcoin you have mined, since nobody in goverment fucking knows what is hashrate or even bitcoin to begin with. So yeah, you can legitimate any almost any profits with such a farm.