See, I think they could be very useful if used consistently and correctly. Take one of the general forums as an example. If every question had one of these

, and every suggestion had one of these

, and every guide had one of these

, and every bug had one of these

, you could tell in a glance what was going on without reading a single word.
PW. Please explain better what you mean. Are you talking about slanting the opposite way of italics, or slanting more, or what?
Also, I agree that we have a number of options for borders and backgrounds, from
[bg] to
OOC: [ooc]
to
to
| [fulltable] |
, EDIT: (sorry, forgot these) and there's the semi-hidden ones like
[em], and [sig] (which wants to not work right now for no apparent reason...Time to go bug hunting.)
[sig]
, much less fancier ones like
, and
, and
| [approved] |  |
What specifically were you looking for? (Quote to see my code.)