Have you ever gone to dinner and thought, “I’ll just jump on the free WiFi while I’m here so the kids can stream YouTube videos and maybe we will have a nice quiet dinner?” Only to then be confronted with a splash page asking for your email address or a social network login. I’ve seen these same services in grocery stores, hotels, and malls just waiting for the siren of free wifi to suck up your contact details.  Don’t get me wrong I see the trade opportunities here; email address in exchange for a free service. But when you’re collecting this information and not being clear on the promotional...