if you're including me in that statement, no, i said i don't do less than 10 hours.  i only quit after either a week or more of no progress (different but not better) or repeated and total inability to render at least 1/10 of the scene at a time at any reasonable setting (which can occur much more quickly).
as for throwing things out, i'm betting on your unfinished being of a much higher quality  than mine.