What targeted ads? One thing are global targeted ads on the internet and another when they are targeted within a specific application for a very specific purpose. because by all means, when you use free version, such stuff is to be expected and such behavior makes relevant things appear to people interested. Which is far better than getting random meaningless popups for stuff you're not even virtually interested in.
So yeah, targeted, intelligent ads inside avast!, yes please. Targeted ads, globally on the internet, no thanks.