This answer (10K only; screenshot) is an example of a "super wrong" post. For the purposes of this discussion, a "super wrong" post is an answer which not only is factually incorrect but is incorrect in such a manner as to contribute to the spread of some popular error in physical understanding.
These errors tend to come in two forms. One, the passively harmful form, consists of popular simplifications of advanced physics concepts being consistently applied outside the realm in which they are useful. The linked answer is an example of this, I think, as is the explanation of airfoil mechanics panned in this xkcd comic. These kinds of answers are super wrong by accident, but unlike regular wrong answers they are tapping into something in the way people think about the world. They are super wrong because, for whatever reason, a lot of people think these things and keep convincing other people that they are true.
The other form is the actively harmful form. This is stuff like 'harmonized water' and other pseudoscientific scams, as well as 'the second law of thermodynamics means no evolution', where an explanation for how something works is not only wrong in a way that, for whatever reason, popularizes it, but also the error in thinking is actively perpetuated by people who know or should know it is false to serve their interests (e.g. the guys selling the 'harmonized water').
In either case, such answers are liable to be downvoted heavily on account of the site community being healthy. This leaves us with answers in situations like the linked one, with the option of deleting such an answer as very low quality. Should we delete such material to avoid potentially spreading it or should we leave it up very downvoted in the hopes that a very negative post score will help combat the spread of that misinformation in site visitors / broader society?