It should be better, but like Scuderia_Russ pionted out, some of the Spam Bots actually register, just look at the screenames, they are usually things like "Free_Viagra_at_our_website" or some such crap like that.
Oh well, look on the bright side...at least we can see by the user name what is spam and what isnt. This way Tomba & Principessa can see the Spam "users" before they post their spam and delete the user account! hehe.
In the fight against Spam F1T will prevail
...I hope
Silence is golden when you don't know a good answer.