We don’t complain not because road signs, in addition to being an eye sore, are relevant to our current activity, but because they provide significant value.
While relevance has some correlation to value, that correlation is pretty weak; it is easy to find examples of high relevance and very negative value. We should not conflate those.
Your opponent (with whom I agree) argued that the problem with most YT ads and billboards is negative value. Which will stay even if google makes them relevant. My 2c.
Good point. I assumed relevance was approximately similar to the correlation, without a strong assumption on the signs. Which is just my interpretation, not a universal definition.
Road signs are relevant so we dont complain about them despite being an ugly eyesore.