reCAPTCHA is the only solution that's so far proven itself invulnerable to OCR.
Plus, statistically a few groups have worked to break it in the past[1]. Even without breaking it programatically, buying human labor to solve them is sometimes equal or less expensive[2].
[1]: http://arstechnica.com/security/2012/05/google-recaptcha-bro... [2]: http://www.npr.org/templates/story/story.php?storyId=1305940...
At least from my experience, setting up reCAPTCHA on personal sites reduces spam to 0. They'll usually only spend money on captcha farms for sites that garner huge amounts of traffic, leaving smaller sites in the clear.
Of course eventually, OCR systems will become as good as a significant fraction of the population, and then the idea breaks down.
I _really_ hate this.
>
> We at Simpli5d Technologies thrive hard every moment for the realization of this vision. Self motivated with funding from an angle, we are a bunch of professionals with multifarious expertise dedicated towards conquering the digital world. The words Techies, Entrepreneurs, don’t define us… We call ourselves Missionaries to En-(On)-lightenment.
oh my god
It seems this website doesn't display as intended which is a bad starting point, then it is ads everywhere and a collection of logos some of which are amateurishly slapped there.
The "try it" is really a long and stupid signup form disguised as a trap to collect your domain name to whois your name and email and probably spam you to death.
I wonder how a captcha you can actually read would be useful and not detrimental as in not blocking bots and still annoying users. Probably better to add a hidden checkbox as a bot trap.
Please, just stahp.
