Crash course in BBCode I'm sure more than a few of you have wondered, "WTF is up with all this BBCode shiznit? OMGWTFLOLBBQ!!!!!11!!1!1one" . Well, I'm here to explain as best I can. In short, BBCode is a pseudo-mark-up language very similar to HTML that you can use to make text bold, post working links, format your text, etc. Read on for more. Q: If BBCode is like HTML, why not just use HTML? A: That's a valid question. And it comes with just as valid an answer: Since the rest of this website is also shown with HTML, Joe User, who thinks he knows what he's doing, enters a comment or a blog post, or whatever, with some HTML in it. But Joe didn't close one of his tags. That could potentially screw up the rendering of the rest of the page and nobody wants that. Not allowing actual HTML in user-contributed content also prevents the malicious use of the