BarkBox's road to 20k customers and 95% retention

Some people are going to be weirded out by this "retargeting" thing. I don't think it quite meets the level of something that privacy advocates can complain about, though. It's just an agreement from ad networks that they'll show your ads when they see your cookies in a request. Ad networks function by reading cookies, so if you accept their existence you accept the basic practice. This is just an interesting new wrinkle.