donor-12345 has asked us to remove their data on the force of GDPR
so, I guess it makes sense that we should delete that stream.
What happens to the projections, as far as versionInStream? Do we wind up with gaps (versionInStream:4, versionInStream: 8, versionInStream: 9 etc.), in which case my application level subscription is still pointing to the last number, or will 10 events deleted cause the last event number to go down by 10.