[pdazecoz] Rewarding changing opinion

Write something (or some other media) that tries to affect people's opinions.

Quantitatively measure how effective it was using surveys, especially asking, "Why did you form this opinion?  Was it this work?"

Provide a reward for those who do shape opinion.  This is a compensation mechanism that works despite little intellectual property protections.

Though what we really care about is changing action.

But people shouldn't be so gullible.

What if the direction of the opinion change is deemed undesirable?