How? (without retyping the whole thing)
I grew up in (the) era of computing when almost everything was all caps. I was one of the slower folks to get used to upper/lower-case typing when upper/lower keyboards and displays started to predominate and when using the apps which included forums like this one and also live chat.
I created some apps back then. Oddly enough, while I was still accustomed to conversing in all caps, I put upper/lower prompts and captions into my apps while several competing apps whose authors customarily used upper/lower to converse, had all caps prompts and captions.