On the one hand, this is great because captchas suck. Hard. They’re difficult to read, annoying, slow down the user experience, and make people feel stupid when they can’t get them right.
In Koenig’s implementation, all you have to do is match a well-known logo to a web address. Simple – right? Probably – if you’re a reasonably savvy web user. Maybe not, however, if you’re not an English speaker or familiar with major tech companies.
But the biggest issue I have with any form of captcha is that they slow down the read-write web. They’re web 2.0 friction. And there’s a better way.
Crowdsource your comment spam problem
Akismet is a simple idea implemented amazingly well: use collective intelligence from all over the web to identify comment spam on blogs and other social spaces online.
It works amazingly well – capturing well over 99% of the comment spam on this blog. That’s about 30,000 comment spams in the past year or so.
What this allows you to do is outsource your comment-spam-control problem. Or, to be even more buzzword-compliant, crowd-source it.
The best captcha is no captcha at all.[tags] captcha, seth godin, Nicolas Koenig, modern captcha, comment spam, john koetsier [/tags]
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