Looks like they raised their Series B only 1.5 years ago. Let's see how they see things 5-10 years down the road.

* It's not clear if they'll be able to raise another round without losing control. What do you plan to do if you run out of your current money without being profitable yet?

* "investors want growth" isn't a problem as long as you're growing quickly, which posthog probably does at the moment. But once growths slows you'll probably get to know that side of them.

* If you raise money at a higher valuation, the required exit size grows proportionally. Once it becomes apparent that you're not on track to reach the target size investors may push for strategies riskier than you'd prefer.