Some interesting thoughts in here. But you are being very paternalistic and acritical when you mention that "many policymakers and development practitioners who repeat your results to others, who design follow-up programs and policies, will only remember your bottom line. When it comes to important policy, no information may be better than misleading information". You obviously don't spend much time reading the short briefs and documents ans executive summaries that your own institution produces, where some preliminary or non-robust or conditional results are boiled down and presented acritically for the policymakers of the world. You know what I'm talking about, right? So it's not only those poor ignorat policymakers and practitioners who do this kind of thing. I challenge you to measure this effect in the Bank's own publications.