NOTE: To 'steel man' an argument or point of view is to present the argument or view in its strongest possible formulation. One must not add anything to the argument or view that wasn't there to begin with, but without that bound, one seeks to present it in its hardest to criticize form.
As an undergraduate in philosophy, I was taught to steel man opposing arguments. At the time I was naive enough to believe steel manning was the norm for intellectuals of all descriptions, from philosophers to scientists, from scientists to theologians, and from theologians to just about everyone else who works with ideas in more or less the same way a carpenter works with wood.
I could not have been more wrong.
The practice of steel manning arguments is no more the de fault mode for intellectuals -- especially publicly prominent intellectuals -- than serving oeuvres in a strip club. A few high-end clubs do it, but not most. The much more common practice is to to formulate the opposing argument in the weakest way possible. It is even considered intellectually honest if you do so without actually mischaracterizating it! But to intentionally formulate an opposing argument in the weakest way possible, when a stronger formulation can be legitimately had, is contemptible.
In fact, I think one of the better phrases for describing people who present opposing views and arguments in their weakest form is "intellectual dilettantes."