I'll respond to the rest of this post later, when I have more of a chance to write, but I did have a recent experience like this.
When I reply to a post, I prefer to quote it, and when I do, I prefer to use such things as italics and blockquoting. I always prefer to preview my posts, in part to check if the formatting looks right.
I'd recently posted something from a computer, which I usually use to write, and my post looked just as I intended it. When I later read the same post on a mobile device, though, some of the lines ran together in odd places (although the italicization still looked right). I rechecked it on the computer, and it looked as it did the first time.
No, I don't know what happened on the mobile device (and I haven't looked again). I also don't know if this case had something in common with your experience, but at least there's the possibility.
Well, we both remained calm and straightened it out. I apologize for initially offending you. You are obviously a very decent man.