LinkedIn - really bugs me every time

LinkedIn makes me sad sometimes. And i cannot help it. Can we all discuss this new screen on LinkedIn.

Have you noticed the screen that appears every time we login to LinkedIn.

It asks to enter the image text in the verification boxes. The SPAM control mechanism.

I guess this is for user authentication.

I don't see a need for this - well i see a need, if that is the case then all accounts should ask the same.

Can there be another way around this? Please suggest.