I am quite privacy conscious. I have deleted my FB account. On principle, I dislike targeted ads, user tracking, etc. BUT, I hate to admit this, the ads I get in Instagram are the most relevant I have ever gotten. I actually look forward to them, to discover new products. They are perfectly tailored to me. Dammit.
I'll be honest, I like ads that are relevant to the things I am interested in. I am no FB fan boy, but their ads are pretty good... I actually click on them. What's wrong with that?
Among the biggest problems with ads are that when they are the primary economic model for these services, they will tweak everything to favor paid ads as much as they can get away with. That means everything from conflicts-of-interest around serving the needs of the biggest advertisers to undermining organic (non-paid-ads) discovery of products and services…