A while ago i was surfing around the internet and i found this site: captchatrader.com. I don't understand why would someone pay for people to solve captchas.
What is the reason? What do they get from that? I don't understand their business. Does someone know what is that all about?
While there are possibly some legitimate uses in the world of automation, the main application is likely using these accounts for SPAM.
Seems like a service like this could swing both ways. I love how everyone assumes paying someone to solve captcha's would be used for spam purposes, but I can think of a pretty big legitimate reason: time. Creating accounts and then entering captcha's can be very time consuming.
If you can pay someone a few dollars to solve captcha's for legitimate use, entering the captcha for you and whatnot, you've saved a whole heap of time you could be using on other things like your startup.
I think the underlying service is really for people to create spam accounts on Facebook and Gmail (as Rob mentioned), but I could see legitimate uses for it (as I mentioned above) as well.
Legitimate uses include crawling websites that monopolize data that should be publicly available in bulk, including data from the Delaware Secretary of State Business Entity Records (Captcha protected). Will someone crawl that and repost please? :)
Just follow the Data 2.0 and Gov 2.0 scene and you will find so many uses for automating CAPTCHAs
Wow, didn't think they would be that brazen about it. I wonder if its possible to get them shut down under the antispam act.
To answer the question, @Rain pretty much has it, they let your robots (software tools which autoamte adding comments to blog posts etc) pretend to be human.
Behind the scenes they probably use Mechancial turk or something similar to put the pictures in front of people which they pay 20c per 1000 so they make their margin.