use simple BBCode in your comments atm follow tags available:
[b]bold[/b] [i]italic[/i] [u]underline[/u] [color=color]text[/color] example [color=FF6600]Text[/color]
list [ul] [li]number 1[/li] [li]number 2[/li] [li]number 3[/li] [/ul]
[url=http://www.google.com]Google[/url] [img=http://uri.to.pic][/img] (fix picsize)
(required wp-syntax) [code]your code[/code], optional with declaration of the language [code lang=”csharp”]your sample code[/code] (all available languages from wp-syntax possible)
Arbitrary section
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