How about newlines within comments?
When posting a comment in stackoverflow how do I add newlines? I pasted some multi-line code example and stackoverflow stipped the newline characters and the code looks ugly!
From How do comments work?:
Comments are intentionally short, having maximum length of 600 characters, and allow only limited markup.
As such, they intentionally do not support newlines either.
You can use the
help link next to a comment box to see what is supported; from the comment formatting help:
Comments support only bold, italic, code and links; in addition, a few shorthand links are available.