I would include this simple rule.
Rule Number 0: If the White Paper has poor formatting, typographical errors, random runaway paragraphs, either too much like an Journal Paper or too conversational, I would not trust the project. A lot of White Papers are just sales papers... They are not even good with their sales pitches

Unfortunately, some people do not read White Papers before risking their investments.
Yes, I agree with that. But anyone should understand this. Your rule should refer to standard analysis. I tried to describe non-standard solutions, when the company looks good and everything is correctly designed on the site it is worth turning to non-standard analyzes.