I'm willing to recommend that authors publish one final draft and let it stay up for a day before finalization, or longer if substantial changes have been made. However, I don't want to reset the last-call period every time a change is made.
Would it be that bad (barring minor typographical or grammatical corrections)?
Yes, it would. If the last-call period is to have any motivating effect, it has to be strict. SRFIs are already going on far, far beyond the ninety-day maximum enforced by the previous editors, and while I see the value of careful discussion, I need a way to keep it from going on forever. Even relatively straightforward SRFIs are now taking a long time.
PPS I reloaded the official SRFI 178 document in my browser. If I am not mistaken, it now shows the latest draft (which is also in John's repository). However, it is not reflected in the status section, which still says that the 3rd draft from Aug 9th is the latest.
Fixed. New draft announced.