He precisely estimated the cost of printing: "Printing was precisely what I estimated it would be: $9,500 "

The cost of re-printing, and re-shipping the posters came out to $7,073, or 9% of the total amount raised. I think we all make these large screw-ups occasionally, but rarely enough that they're not in budgets. I think I cost my last job 20k in an afternoon once.

I don't think this at all indicates people should be wary about funding projects: everything was delivered.