Tony Morris

Do I get to decide if I think it is the best way to get the point across, or is that decision left to arbiters?

you get to make the choice. spectators will observe and form their own opinion.

Am I obliged to ensure observers have full access to context, to ensure accuracy in their forming an opinion?

you are not obliged to anything. If you care about the accuracy of opinion, you might want to provide full context

To everyone, one by one?

unfortunately, who gets what information is typically not under your control.

then I shall continue not caring about irrational responses.

make the context accessible, seekers of truth will find it. Don't care about the rest.