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Commenting

You can post comments on any reddit link, and read comments that other people have posted. You can even vote on them! Just like links, comments rise and fall in the rankings as people vote on them. The more Upvotes you get, the more your Comment Karma will go up.

Reading

reddit's comments are threaded — when you reply to someone's comment, it gets indented below it. Collapse an entire comment tree by clicking the [–] on the first line of the parent comment.

Posting

You can format your comments using the Markdown syntax. Here is a quick reference table:

<table class='wiki'> <tr > <td >you type:</td> <td >you see:</td></tr> <tr > <td >*italics*</td> <td >italics</td></tr> <tr > <td >**bold**</td> <td >bold</td></tr> <tr > <td >super^script</td> <td >super^{script</td></tr>} <tr > <td >~~strikethrough~~</td> <td >strikethrough</td></tr> <tr > <td >[reddit!](http://reddit.com)</td> <td >reddit!</td></tr> <tr > <td >(tab or 4 spaces)preformatted text Requires a blank line between the code and any normal text above.</td> <td >preformatted text</td></tr> <tr > <td >blah blah `inline code text` blah blah</td> <td >blah blah inline code text blah blah</td></tr> <tr > <td >\*escape the formatting syntax &#42\;</td> <td >\escape the formatting syntax*</td> </tr> </table>

This table can also be accessed from any comment box by clicking the "help" link.

For more advanced syntax options, see the Official Markdown Syntax.

Or this popular user-created Markdown primer.

Tables

Create a table in Markdown by typing in:

  Column A | Column B | Column C

---------|---------|---------
A1       | B1      | C1
A2       | B2      | C2

which will be displayed as:

To change the alignment of the elements in a column, then add a colon (the ':' character) to the left or right of the hyphens in the appropriate column of the second line, or to both left and right for centre-alignment. For example:

  Left align at the beginning of a line, Markdown interprets it as a numbered list and always starts at one. For example, if you typed "2009. What a year.", it will output as "1. What a year." To fix this, put a backslash in front of the period: "2009\. What a year."

Links with special characters

An issue affects links to Wikipedia and websites with similar URLs. To link to:

http://en.wikipedia.org/wiki/Pica_(disorder)

escape the problematic characters "(" and ")" by adding backslashes in front:

http://en.wikipedia.org/wiki/Pica_\(disorder\)

The same applies to named links:

[Pica (disorder)](http://en.wikipedia.org/wiki/Pica_\(disorder\))

renders as:

Pica (disorder)

Line Breaks

Individual line breaks are ignored, so if you type:

Hu Ha Hu Ha Hu Ha Hu Ha
Eh Meh Eh Meh Eh Meh Eh Meh

...you get:

Hu Ha Hu Ha Hu Ha Hu Ha Eh Meh Eh Meh Eh Meh Eh Meh

To display a line break in your post, put two spaces at the end of the line, or use a double line break to start a new paragraph.