I was a bit surprised to discover that using headings is considered "yelling here" (see edit here). I'm familiar with the idea that ALL CAPS is yelling, that's common across the internet standard. But I've never seen references to headings being described as yelling.
<h1>) headings is yelling and somehow forbidden here, might it be worth engaging with SE to have the CSS of headings shrunk a little.
While the difference for sighted people is just font size, there is a semantic difference between
<h3> that may be interpreted by screen readers and anon.
It seems wrong to me to edit down everyone's headings (adjusting the semantics) because we don't like the font size.
###for headings just because I find the font size for a single
#to be massive compared to the actual body text. I don't have a problem if people have a use for the other sizes, especially if they need to actually use different heading sizes for clarity, it's all just personal preference really. Personally I wouldn't consider any of them "yelling" unless context implies it such as a heading that says "# you're all wrong and I'm right"
###, unless I need a hierarchy of headings. The reason is I find the font size of
#exaggerated and intimidating in comparison to sole normal size. I wouldn't call
#yelling though. So I'm with Mokubai. However, if you tell me
#is better than
###in case of a flat structure, because of screen readers or so, then I will reconsider.