The basic idea is that the real value in advertising is as a signaling mechanism, and targeted advertising removes most of that signal.
I feel like personalized pricing has some of the same issues, in that it erodes consumer trust and makes it more and more difficult for consumers to confidently spend their money in the market. I am not sure how we fix the problem, though, because it is a collective action problem; any individual company will need to use personalized pricing to compete, but that behavior will hurt the economy as a whole.
I don't know the solution to this problem.