Eh... Alright, so, I guess I could try my hand at explain this. See, the site doesn't really use a complicated coding cause, during the last days of 2013, the site was gone. The host, for some reason or another, could not support the site and it was wiped form the face of the Internet. When the guild was resurrected, the site no longer used the same Forum host, and the owner started from scratch. So the Code is now much more simplified, but also without any unique features such as coloring and what not. But since it's made from scratch, it's also a bit buggy at times.

Also the way you worded your question confuses me, but I'm assuming you're asking why the coding for things like bold, italics, etc is like the way it is right now.