Luis Enrique,
See above about “We Change Our Minds Less Often Than We Think”; my interpretation is that the people are trying to believe that they haven’t made up their minds, but they are wrong. That is, they seem to be implementing the (first) advice you mention. Maybe one can come up with more practical advice, but these are very difficult problems to fix, even if you understand the errors. On the other hand, the main part of the post is about a successful intervention.
Luis Enrique, See above about “We Change Our Minds Less Often Than We Think”; my interpretation is that the people are trying to believe that they haven’t made up their minds, but they are wrong. That is, they seem to be implementing the (first) advice you mention. Maybe one can come up with more practical advice, but these are very difficult problems to fix, even if you understand the errors. On the other hand, the main part of the post is about a successful intervention.