As I recall "order of magnitude" was relative to the base. So I think you are right.
I catch the use of irregardless by other people, but say nothing.
I find my editor catching me on switched words. It is a matter of typing and I overlook it when I read. Then, when I turn the document/manuscript or article to the editor, she hands it back, "dripping blood".
And, I forgot to mention, the English used to raise the single finger with their family crest to the French meaning, "my family is against you."
Interesting.
