Hmm, while Google is crawling more of my pages, a lot more bots are contacting my site too :p. There are putting SPAM comments and sending me SPAM mail. At a certain point, I received 1000 mails in 1 hour, so I changed permissions that a guest user is not able to post anything.
But, in my opinion, it's really stupid to ask a visitor to register on my site for just putting a comment, or just contacting me using the "Contact form".
So I've installed the Captcha module. I configured the module that it will ask the user a small MATH calculation:
I don't like the "Image" calculation (the user has to type a word that is displayed in an image). As the image is most of the times unclear, the user will get tired of trying to fill up the captcha field.
Anywayz, all visitors are welcome again to comment and mail me ;-) !