Earlier quoted context omitted.
> It's usually described as, "construct the best possible form of your opponent's argument." If they made some weak points in their argument, steelmanning would involve either ignoring those or reconstructing them to be stronger. Those two sentences seem contradictory. What definition of steelmanning requires ever ignoring weak points that have been made by one’s opponent?
I think this may depend on what definition you're using, but generally people have multiple points while arguing their case, and it can make sense to drop weaker or more vulnerable points to strengthen the overall argument. Thus, the best possible form of an argument may involve ignoring or reconstructing certain points. If someone says something vaguely racist while arguing against, say, multi-family housing, the be…
If a point is so significant, then the result of dropping it would no longer be “their argument.” Doing so would not qualify as steelmanning by any definition I’m aware of—it would be a different argument altogether.
To steelman is effectively to practice the principle of charity, by not assuming irrationality when a plausible rational view exists that fits the same arguments. But if one’s opponent has made an irrational argument, no assumption is necessary!
> I think this may depend on what definition you're using
What definition do you use? It doesn’t match how I’ve ever seen the term used.