Is there any real reason for registration captchas being very difficult? I don't think I've ever seen any website having captchas this ridiculously hard to figure out, so I'm really wondering what could be the reason for this...
I consider myself having relatively good English skills even though it is only my 3rd language, but these captchas... If you get unlucky you might get over 10 nearly impossible to solve captchas in a row. I am sure Ogre is losing users because of this.
Can you find harder captcha than this?

Here are some random captchas:


