Normally I use the "Smaller Subheader" formatting to make my paragraphs easier to read. To my opinion, it works like a summary and helps readers to get the main idea by a quick glance. This is how my answers look like:
First statement - details, details details, details Second statement - details, details details, details
However, I've received a comment to this answer, which says it was not very polite:
Downvoted because you don't have to scream your opinion in a large+bold font.
I've never thought of headers as of "screaming" text. Is that using of headers commonly-accepted?