I report them as spam.
Its nothing i signed up for, and consider it marketing. And there is no unsubscribe link in the email, and its from an unmonitored inbox.
That makes it spam, and i hope it trashes their mailer IP's reputation
It's almost certainly going to do well enough that the VCs and insiders will be able to cash out. The founders will be centi-millionaires. But, people who buy in at the IPO price, I wouldn't be surprised if they lose a lot of money.