Of recent times I've noticed a few people using XML tags within their posts to great effect. Being Java people we should probably attempt to standardise these in to a some form of schema

<rant></rant> -
Implies the writer realises that thing they are typing does infact sounds like they are spouting off but at the same it really does matter to them.
<threadjack></threadjack>
<jack></jack>
The author is about to take the post waaaaaaaay off topic and is trying to apologise. Of course this never helps the original poster but it makes the author feel better.
<sarcasm></sarcasm>
<joke></joke>
With our different cultures sometimes it is difficult in the medium of the forum to fully express when we are being sarcastic in terms of normal english text. This tag gives a direct indication of such sarcasm.
<troll></troll>
The author is aware that thing they are typing will be viewed as inciting a riot but is going to do it anyway. A futile use of our XML but still a perfectly valid tag.
We also might need a name for this dialect,
</joke>
Kev