CAPITALIZATION help emphasize for reader comprehension.
Hope this helps:
It’s really more about style. The use of caps is a matter of subjective preference.
IF AN ENTIRE SENTENCE OR A MAJOR PHRASE IS ALL CAPS, THAT IS SHOUTING. If one only capitalizes one or two WORDS, that is emphasis. It is a ‘style’ that is essentially seen in real-time electronic conversation Communications and conversational English not strictly governed by rules.
Enjoy! You are allowed to do whatever you like, including for capitalization. :)
I wasn’t asking your permission. :) Nor will I ever.
In the U.S., ALLCAPS tends to denote shouting and exclamation points added to that tends to make it screechy.