If I've gleaned your logic correctly, saying "I built this in three days" attracts the most critique. As such, if you're looking for critique (insensitive or otherwise), that seems like exactly the sort of preface to attach to the title of your submission.
I agree that nobody should be impressed... with all the Rails Rumbles, Django-dashes and StartupWeekend projects I've seen in the past, it takes quite a bit to wow me with a 76 hour project, but I don't know know why that should bother the creator either way.
Edit: Sorry, my eyes are glazed over, and I just realized that's basically exactly what the GP said. Apologies for being repetitive.