On: Ask HN: Why don't companies use hand-coded ads?

[andrerm]

Because advertisers would lose tracking people which would make very hard to measure ad effectiveness. Also, ad tech co would lose tracking which would make it harder to profile peoples behavior on line.

[perilunar → andrerm]

You can still track click-throughs on the destination site. If the source site sends you its stats then you get the click-through rate.

What you won't get is automation and profiling.