[xd1936]

I'm also curious about the Captcha. It's a great idea, but what's to say that bots won't be able to run it as well?

[ryanworl]

It isn't that bots can't do it, it is that they must waste significantly more resources than they would otherwise.

[singularity2001]

they are able to run it but at high costs. deterring some spammers in some cases.