Aren't most website storing long-term cookies when the user check the "remember me" function? Also, I think that the most difficult part of an automatic signup system would be captchas.
This is something I have thought about, but I've observed a great many websites that don't use a captcha because of whatever reason. All that's needed here is to bulk-solve captchas as they are needed. Not necessarily in a nefarious manner, but simply to isolate/silo the captcha solving process away to another system. There could a separate H.I.T (Human Intelligence Task) system similar to Amazon's Mechanical Turk program where the 'hard problem' of captchas scales down to a more manageable problem.
Depending on the size and scope of the skeleton key system, there could even be (very willing) people ready to solve them in exchange for a small fee. There's a startup if I saw one. Users of the skeleton key system could go premium if they want to bypass captcha systems and a portion of the money goes to the captcha-solver. Probably not a new idea, as I've seen many such nefarious systems in place for spam, except this would be legitimized!
you want to bulk solve captcha's, in a non nefarious manner? but do you realize that bulk solving is nefarious? captcha is to prove you are human, not a bot or script.
Except for the fact that humans are solving them, only getting paid for solving them and rendering said captchas effectively redundant. The key term here is isolation, where rather than captchas serving to hurt flow states, they are isolated away and offloaded more comfortably to the solvers who are happy to solve them in return for a reasonable fee. Google's new system is a bit more robust however and uses fingerprinting. One could argue that fingerprinting is more nefarious than letting people have a small income from captcha solving. On the subject of Google's fingerprinting http://blog.higg.so/2015/02/24/googles-new-captcha-security-...
you think the fact that humans solving them in an automated fashion, instead of a computer doing it, is what makes all the difference? Rendering the capthas redundant is the problem.
Maybe you just need an app that signs you up for sites.
