I just use the Comms Room to find out how to add formatting to comments. A helpful person there pointed me to http://serverfault.com/editing-helphttps://serverfault.com/editing-help, which I would know if I was asking a question. However, when writing a comment, that doesn't show up.
Proposal: add a pointer to that page on the FAQ, and say "works great for your comments as well!"