you snip, I snip
Not useless, but not especially useful. There are no actual OLED monitors. Comparisons to televisions (that also aren't matching resolution and other features) are inadequate.
But no one is stopping anyone from trying to game on an OLED TV if that's the best experience for them. Similarly, given the featureset of this monitor, it's price is not truly outrageous (though hardly ideal), and the market will decide if there are enough use cases to make this model a viable option.
No one loses in there being more options in the market.