Earlier quoted context omitted.
Okay, so how would you model that? Can you be precise? What's the lifetime revenue generated by $1 of ad spend? This number is critical, because if that number is too low then the equity is, mathematically, worthless. It's not about patience, it's about whether you're compounding a number that's >1 or a number that's <1. I just cannot tell.
Yes, companies have ways to do this with a decent amount of precision and accuracy based on existing user behaviors. They can often even be detailed enough to know that LTV differs depending on the channel that the customer was acquired by (e.g. organic vs. Facebook ads vs. search ads) and tailor their ad spend accordingly. I don't know what AirBnB's numbers are, companies aren't required to disclose this and they gu…
I am not saying they're doing a bad job, I am merely saying that it looks difficult to tell. Remember, the management has a huge incentive to sell you the stock regardless of the future value of the business, it's your job to figure out if it is a good idea.