It seems a lot of people are missing the true concern here because they only read the first half of the article.<p>Going to paraphrase the article a bit here but yes, the website is capturing the filled-in data even if the user hasn't hit the submit button. However, they're also running a tracking script from an advertisement network in the background that attempts to capture your e-mail. If you visit Site A as a result of one of the ads from that network, but leave without putting down your e-mail address, and then go to Site B and do leave your e-mail address, the ad network will send your e-mail address to Site A in an attempt to "re-capture" that lost impression for Site A even if you never even hit submit on Site B. They're marketing it as a way of reducing ad-spend because you don't have to keep trying to target potential customers who've already shown interest through more ads.<p>I'm not a lawyer so I'm very curious to know how this doesn't easily violate COPPA for Site A, Site B, and the ad network, among other privacy laws. The wording from the ad network shown in the article is a bit vague around enabling a "triggered email sequence", so I'm wondering if they get around some legal issues by sending emails for Site A on their behalf rather than sharing the email address itself.<p>* Edited for minor typos I noticed after hitting submit.