[@Inuyasha] That one is easier to understand...It looks like they used the coding for font. [font] [/font] ? Which I don't personally know how to do, but that is part of BBC coding. But it must exist...but I can assure you it's not some kind of special perk.

I found where they got the crown, you'd have to look up symbols. You'd just copy and paste.
http://jaffagazanian.tumblr.com/post/5528389956/cool-characters-symbols
♔ <- The crown.

So I don't have exact details. But I can tell you, it's simple coding or using outside sources.