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If "<i>" is innocuous enough to be allowed in questions and answers, why can't we use it in comments too? Please don't make me memorize a bunch of dippy Markdown syntax just to add a little flavor to my comments.

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Dippy markdown? Theres ** for bold and * for italics, which I would take over <i> and <b> anyday. – Ian Elliott Jul 17 '09 at 0:03
See, right there I have to remember which is which. If I'm going to commit that to memory it's probably going to come at the cost of forgetting something else, like the capital of Sri Lanka. – phenry Jul 17 '09 at 0:07
Agree with @Ian – Alex Budovski Apr 1 '10 at 9:03
@Ian, @Alex: That would be a bit more helpful if there was preview so you could check that you'd gotten it straight before posting. – SamB Sep 29 '10 at 19:35
@SamB preview for comments seems a bit much. – wchargin May 7 '13 at 3:22

We do allow very limited markdown in comments now. Click the "help" link below the Add Comment button to get comment formatting help.

  • * and _ for bold, italic
  • `` for code blocks
  • [example]( "merely an example")

No HTML, just Markdown in comments, please!


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Also, on sites that support it (e.g., Math.SE, Physics.SE) you can use MathJaX in comments, for example $\sin^2 \theta$.. – wchargin May 7 '13 at 3:24
How do you write subscript and superscript in Markdown ? – Nicolas Barbulesco May 4 '14 at 13:43
Italic with * does not always work. – Nicolas Barbulesco Jun 18 '15 at 16:07
Let's test : 4 π *r*². This fails ! – Nicolas Barbulesco Jun 18 '15 at 16:10

I think the idea of a comment should be a quick text entry. If the comments start getting all jacked up with LI and IMG and all of the others, you lose all UI smoothness for the sake of better terms.

Overall, please no...

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Subscript and superscript would not hurt. – Nicolas Barbulesco May 4 '14 at 13:38

A markdown for links would be great and helpful, something like A Search Engine

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We have that already for markdown. It just doesn't work in comments: a search engine. – bignose Mar 23 '10 at 11:52
Though of course it should. – bignose Mar 23 '10 at 11:53
@bignose it does now! – Jeff Atwood Apr 1 '10 at 9:19

Personally, I'm just sick of having to remember to escape > and < in posts but not in comments.

Okay-- and I'd love to know how to escape asterisks because I've had to resort to using >smile< instead of my usual "asterisk" smile "asterisk"... >sigh<

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Comments are text. Text only! No bold. No italics. Just text! Let's just agree that we shouldnot need to escape anything. We can disagree on the reason that would be :). I would hate escaping them too, just don't use them that way. – RSolberg Jul 17 '09 at 2:38
I'd like text-only comments. Some Markdown support got added to them sometime last week, I believe. I recall leaving a comment with some asterisks around a word (something I've done in text for years) and was surprised to see italics in my resulting comment. Or are you arguing that I shouldn't use underscores and asterisks in text in general? – Evan Anderson Jul 20 '09 at 13:46
well, probably they shouldn't have changed the syntax out from under the feet of existing, frozen comments, but oh well... – SamB Sep 29 '10 at 19:39

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