Oh. I should have looked, as I do the same too often, but i usually see the autocorrect marker.
Well, Dan, it's me that does the mistyping, and me that should have given what I wrote more minute attention--at least to the red underscore(s)--and not let these little irritating, distacting errors through.
I will take it on myself to try harder. I get impatient with the narrowness of the text-entry window, and fail to make allowances. But there is really no excuse being slipshod in composing a comment.
So, thanks for your gentle hint to make better use of what the site's process does provide for correcting them.
(And forgive the misuse of the predicate pronoun as being the nominative.)