Why Twitter’s ad-tracking system is actually great news for the Do Not Track camp

The company unveiled yesterday its new ad retargeting effort, which lets it display advertisements to users based on their browsing activity. As Twitter argues, it’s all about seeing better, more relevant ads (and making more money from advertisers). But while the news is a big deal for Twitter, it’s actually a bigger deal for proponents of Do Not Track. Twitter says its new system will honor DNT signals, which means users who opt out won’t see targeted ads