My new text markup langage

It's better than BBCode:
`b`i`o`u{I AM AN EXPERT PROGRAMMER}
`sup{NO `sup{MORE `sup{NESTING `sub{PROBLEMS`b`i{!!}}}}}

Also, the parser in Haskell is 30 lines.

>>18
I know, and I'm advanced in BBCode enough to avoid them.
Still, the closing tags have a big size overhead (especially with [spoiler] tags), and a mistake I sometimes make is accidentally putting the / before the tag instead of inside it.