3:00 PM
Another possibility to get a source of a single comment is simply to post a comment in some room when the comment is not distracting, for example, in the sandbox. If you are only after MathJax - such as $e^x\ge 1+x$ - you can simply copy-paste, since MathJax is not rendered in. If the comment contains also MarkDown - such as bold or italic - you might need to do one more step and view source through "history". — Martin Sleziak 16 secs ago
If you need only MathJax - not Markdown - from a single comment, a possibility is simply to post a comment in some chat room where the comment is not distracting, for example, in the sandbox. If the comment contains MathJax - such as $e^x\ge 1+x$ - you can simply copy-paste, since MathJax is not rendered in chat. (However, this does not work for MarkDown.) — Martin Sleziak 2 mins ago