I can see a point in that.
Now a days everybody must have CAPTCHA to protect their website from being overtaken by robots? Your local Rabbit Welfare Association has CAPTCHA to prevent robots from signing up for the annual news letter.
Personal I find CAPTCHA annoying. When I, for the 20th time has been filling out some registration form and then guessed the obscured CAPTCHA image wrong, resulting in clearing the form, I get pissed.
It is often impossible to tell the difference between cC, wW, xX, yY and lI.
My point is: Don't use CAPTCHA unless it is necessary. Use some other kind of submission control or like in the rabbit case; don't use any."
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