tabscorbet
 
  1  
Reply Sun 22 Jul, 2012 07:48 pm
clear your cache
0 Replies
 
onmybike
 
  1  
Reply Tue 19 Feb, 2013 05:36 pm
When I see a web site with "capcha" I think OH NO. Its' near impossible to decipher what is required and I have wasted so much time with capcha that I navigate away from the page. Anyone using this system is deflecting me from their site
0 Replies
 
TonyMccallum
 
  1  
Reply Fri 22 Feb, 2013 12:52 am
@lmur,
Hello Members,

Facebook has built a number of automated systems to detect spam and potential spam and block those responsible. When we find a URL that we know is spam, we add it to a blacklist and prevent it from being sent or posted. Spammers are smart, though, and they often manipulate their URLs in an attempt to get around these controls. As a result, we’ve also created a “greylist” for URLs that might be spam, but might also be legitimate. When users try to send or post these, we put up a captcha for them to solve. Spammers typically use scripts and machines to do their dirty work, so these captchas, which can only be solved by humans, help stop them in their tracks.

Best Regards,
Tony Mccallum
0 Replies
 
 

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