Scientific red flags

A great observation by a reader over at NRO:

Here are some red flags in the behavior of mainstream scientists that
could be used as prompts for examining more carefully the consensus
position.

(1) Consistent use of ad hominem attacks toward those challenging their
positions.

(2) Refusal to make data public. This has been going on in this area for
some time.

(3) Refusal to engage in discussions of the actual science, on the
assumption that it is too complicated for others to understand.

(4) Challenging the credentials of those challenging the consensus position.

(5) Refusal to make computer code being used to analyze the data public.
This has been particularly egregious here, and clear statements of the
mathematics and statistics being employed would have allowed the
conclusions to be challenged at a much earlier stage.