grenv: To be frank, I like the present system. It is clear and unambiguous, and we don't get into tedious arguments about players offering to resign a single game in order to avoid being gammoned.
Dailygammon has just implemented a system in which the server forces a resignation in clear cut situations, and resignations are otherwise not allowed (except for match resignations). That works well also.
In short -- the less complication and the fewer opportunities for individual choice, the better, in this context.