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.
We do allow very limited markdown in comments now. Click the "help" link below the Add Comment button to get comment formatting help.
_for bold, italic
- `` for code blocks
[example](http://example.com "merely an example")
No HTML, just Markdown in comments, please!
A markdown for links would be great and helpful, something like A Search Engine