I have to pay to be able to donate my own infra to make tailscale's service better?
I kinda doubt we'll end up charging for it (as it costs us ~nothing except support costs, which are real), but it's easier to make it free later when it's GA rather than rug pull on people and start charging for it in the future if we start it out free+unlimited.
They instead make your own infrastructure better.
Running a peer relay donates nothing to anyone.
While I don't think that's accurate, I, too, am surprised that this feature isn't¹ completely free. After all, it will make it easier (or possible at all) for many people to use Tailscale.
¹) s/isn't/might not end up being. See https://news.ycombinator.com/item?id=45751253