Categorizing ads as "user abuse" is hyperbolic and I doubt any significan fraction of users feel they're being abused when they see a banner ad for potato chips. Bringing customers and companies together is a basic and necessary aspect of living in a market economy. I've seen commercials for new food offered at restaurants, wanted it, gotten it, and felt good about the whole chain of events; have I been abused?
Further if "tracking" makes ads more relevant then all the better for everyone involved. Some electrons in a server in a rack on the other side of the country, that you'd never know existed if people didn't stir up a hysteria over, not even directly correlated to your real identity or containing anything more important than a preference for high end silverware, can't hurt you and have no just cause to be demonized.
Further if "tracking" makes ads more relevant then all the better for everyone involved. Some electrons in a server in a rack on the other side of the country, that you'd never know existed if people didn't stir up a hysteria over, not even directly correlated to your real identity or containing anything more important than a preference for high end silverware, can't hurt you and have no just cause to be demonized.