Sure, spammers are evil. Spam is annoying. Spam in comments included.
But captchas do not block spammers, they block legitimate people! It is unforgivable and discriminatory—not to mention illegal—to deny access to people. Even to avoid spam. I don’t think that counts as unjustifiable hardship.
Shame on you, Blogger, for the “word verification” feature. Spam is a problem, true, but this is not the solution.
Ben Boyle lives here! 
I too have been the victim of spam and had spied the verification tool, but dismissed it as a deterrent to genuine folk. I’m now glad to hear via you, whom I trust supremely, that it would have been a waste of time anyway.Now, my 5 are 2 and a half weeks old and teething. What are you guys doing with that baby!!!!?
Incubating something—someone—special 🙂