Due to the way that Tailscale handles DNS requests when using an exit node, the exit node of a tailscale network sees a disproportionately higher level of request volume than any "normal" node on the same network. To overcome this, I've increased the rate limit on the pi-hole to accommodate the volume but it would be very nice if I could keep the limits far lower for "normal" clients and only increase it as needed per client for situations like this.