The reason for not allowing HTML was specifically to allow some pretty crappy and spammy stuff to be done with roomfaqs. I think the current formatting is both easier to understand, more suited for the usage of roomfaqs, and especially since we allow mods to edit them now, safer. I'd be willing to expand the formatting in ways if there's features missing, but HTML is just way harder to sanitize plus makes it harder to use for people who aren't too familiar with html.