I will hold my hand up to making a similar blunder.
I pointed out to another member once that capitols meant shouting.
I did not intend to be rude.The person concerned told me that they needed to do it because of their eyes.I felt very bad about it as I had been thoughtless.
The person concerned was very gracious about it for which I thank him.
It does not matter how we write as long as we all join in and enjoy each others posts.