Thanks for bringing this up. Yes, it would make them more readable. We would, of course, enable an option to turn them off for those that prefer not to have them.
As you mention this has been raised before and is pretty high on the most wanted features list. We develop this list based on input here, and also from various sources (emails, survey, social media).
So yes we have considered it, and as you realise we would have to do some more work to make it no-tracking.
We have been, and are working on features that are more of a priority and which correlate with the inputs we get. Those are search relevance improvements of which there are many changes made every day which you don’t see, and bigger challenges notably recency, location, and semantic matching.