In the years since this "higher-bar" policy was described, things have actually gotten worse on these topics.

For that reason we should actually go a step further and just automatically put any question on these topics from a new user on hold. If, presumably after ironing out any issues, users decide the question is acceptable, they will vote to have it opened for answers. The "higher bar" will probably still be in use by users to help determine weather to vote to (re)open the question.