Mostly copied from Here
Basically, something which allows developers to specify where on the screen we should show an ad.
E.g: AdService:ShowVideoAd(UDim2.new(0.5, 100, 0.5, 100), UDim2.new(0, 350, 0, 150))
Position followed by size.
The most obvious way of abusing this is by shrinking the size of the ad to something small or positioning it off screen. I don’t think advertising agencies would like that, and Roblox would be held responsible for allowing it to happen. There’s trouble in setting arbitrary limits, too, as devices don’t have the same resolution.
This would really cause more harm than good. Mostly just because it has to be future-proof and desktop resolutions change all the time, so positioning it and then having the user change the resolution would look really bad.
Unless someone can think of a better API for this I’ll have to disagree.