Comments support Markdown syntax, extended by some handy tags:

@426links to post number 426
#Dragon_Balllinks to tag “Dragon_Ball”
+Piratelinks to user “Pirate”
~~new~~adds strike-through
[spoiler]Lelouch survives[/spoiler]marks text as spoiler and hides it
[sjis](´・ω・`)[/sjis]adds SJIS art

You can also specify the size of embedded images like this:

  • ![alt](href =WIDTHx "title")
  • ![alt](href =xHEIGHT "title")
  • ![alt](href =WIDTHxHEIGHT "title")