Why don’t you do it a few times first before advertising it? It’s be quite sad if someone gave you two years of their life and then have you fall through on your end of the deal.
It's because we wanted our team to be aware that we'd have this intention so we don't miss out! If someone leaves PostHog voluntarily to start a new company (i) that's sad for us but is a pretty cool reason to leave and (ii) if we were willing to employ them, we'd be willing to invest in them more.
There are some pieces of missing context I guess. Primarily that we're small still (30 people) so we tend to hire a lot of ex founder / generalist type people (and most are technical) who'd be quite well suited as founders.