Annoying Security Code

Today, I was registering on a Chinese forum,and I actually had to enter the “security code” 4 times before finally getting it right. What’s the point of these security code anyways? Why do they make it the letters so hard to read if it’s simply for stopping bots? It’s not like a few really-badly drawn letters can stop a hacker from hacking the site or anything…

Oh yeah, the part about “pi” actually happened to me, and that was what I typed. Then as I expected, it told me I got it wrong. Now that i think about it, that might have been a 4 rotated onto its side, with some random line attached to it somehow.

PS: looks like I’m beating nubson already