From the other thread:
Originally Posted by USA197
The Alter Cup does have provisions for protest hearings to be heard on the dock between races. This is necessary because of the way the fleet is divided and seeded after each race. It is possible the hearing was held on the dock between races and only reported as a DNF for the purposes of these updates. It is also possible the competitor did not finish after realizing the error.

I certainly don't mean to impugn the Alter Cup race management. It would be wrong to make any specific judgement based on reports posted here. I do think, however, that it is worth having this discussion in a hypothetical sense, and this race provided a starting point.

If, indeed, a protest hearing was held, and the boat disqualified, and the score reported as DNF (rather than DSQ), then that is simply a typographical error. If the boat realized her error while racing, and stopped without finishing, then DNF is the correct score to give.

Regards,
Eric