That would be fine and dandy if most speed limits (in the US at least) were assigned intelligently and not just according to the 85th percentile, which just measures how fast people actually drive down the road, and assumes anything in the top 15% is unsafe and should therefore be illegal
Advertising is like the Kudzu vine: neat and potentially useful if maintained responsibly, but beyond capable of growing out of control and strangling the very landscape if you don’t constantly keep it in check. I think, for instance, that a podcast or over-the-air show running an ad-read with an affiliate link is fine for the most part, as long as it’s relatively unobtrusive and doesn’t put limitations on what the content would otherwise go over.
The problem is that there needs to be a reset of advertiser expectations. Right now, they expect the return on investment that comes from hyper-specific and invasive data, and I don’t think you can get that same level of effectiveness without it. The current advertising model is entrenched, and the parasitic roots have eroded the foundation. Those roots will always be parasitic because that’s the nature of advertising, and the profit motive in general when unchecked.