Support for rendering inline math expressions has been available for Discourse forums.
Being able to express oneself mathematically would be a useful feature for explaining concepts on the DevForum that require use of mathematical representations otherwise less readable when displayed in plaintext.
Right now, I can think of someone trying to explain properties of matrix operations for CFrames.. without visually displaying matrices..
So, users have had to hand-write, use tables, or import images of the typeset expressions to display this information:
I’m sure there are more examples where being able to render mathematical objects properly would help with explanation consistency among DevForum math explainers.