I'm guessing it's "growth-hacking" wisdumb. Presumably the logic is that it means that you have the emails of people who are interested in your product, both fo

I'm guessing it's "growth-hacking" wisdumb. Presumably the logic is that it means that you have the emails of people who are interested in your product, both for metrics reasons and to be able to send them emails to keep them engaged. Maybe also with a dash of "if a user has created an account, they're more likely to feel invested and use the product"? I could be mistaken. Heck, it's even possible that it's good advice, but I doubt it. I'm guessing that this kind of thing prevents more new users than it hooks.