Don't shoot the messenger! A Bethere engineer originally suggested this.
It would make some sense, if I remember my physics from over a decade ago. Cooler denser air would displace any hotter air warmed up by the circuitry, and form a convection effect through the large vents.
It would make zero sense. If the inlet and oulet vents were to be reversed, (and I maintain there are some at round the top rim, though quite narrow), then they would have been manufactured reversed.
Also the components on the main card will all be on one side, I expect the top but don't know. It doesn't really matter. If you turn it upside down then they will have even less unrestricted air space, whichever side they are mounted.
Either prop a side up as I suggested or stand on end as BatBoy suggested. Either cools it enormously. The design does not promote an ambient temperature through-flow. These two solutions do.
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