Don’t Use All Caps To Shout
Not cool to shout. In some cases, it works. Other times, it annoys all who view. Given, social media is semi public. Plus, we share messages.
In any event, we are supposed to write in mixed case. Emphasis here and there. Nothing extreme. Hence, don’t shout with text.
On the other hand, advertisers do it. An exception to the rule. Also, titles and heading appear in upper case letters.