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Old 05-26-2008, 06:49 PM   #1
Andrew B.
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Default Forum Bot Prevention Method

I just joined a phpBB forum that has a bot prevention method I've never seen before. The software showed me nine photos of animals, and asked me to click the ones that fell into a category of animal. So, for example, you could show photos of several animals and ask the user to click on the photos of birds.
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Old 05-27-2008, 02:04 AM   #2
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There was recently a long thread on this type of spam prevention (CAPTCHA etc.) on the W3C WAI mailing list. Lots of ideas - and many of them fell down on the "discriminates against those with cognitive problems" hurdle - as would this one I suspect. Of course, target audiences may not include such groups (fairly or unfairly).
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Old 05-27-2008, 06:44 AM   #3
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Originally Posted by LoisWakeman View Post
many of them fell down on the "discriminates against those with cognitive problems" hurdle - as would this one I suspect."
Did anyone bring up the idea of "reasonable accomodation." Having a fallback method that involves manual moderation could accomplish this.
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Old 05-27-2008, 07:07 AM   #4
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Did anyone bring up the idea of "reasonable accomodation." Having a fallback method that involves manual moderation could accomplish this.
There are always ways of making it work, it just is a matter of figuring them out.

   
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Old 05-27-2008, 07:30 AM   #5
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This method certainly discriminates against those who cannot see the photographs, and even if we just forget for a moment that an auditory CAPTCHA has its own problems, it does not even lend itself to an auditory alternative (unless you think listening to nine different longdescs would qualify - which I don't).

There are plenty of accessible ways to weed out the bots, including ways that humans won't even notice but trip up the bots. Die, CAPTCHA, die!

(Working on implementing those "plenty of accessible ways" for Xaraya and Wikka wiki...)

   
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Old 05-28-2008, 01:12 AM   #6
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Oh, I entirely agree Andrew: but reasonable men and accessibility zealots are not good bedfellows*. I once read a post by a totally blind chap complaining that Corel Draw was not properly accessible to him as some drawing actions had no keyboard equivalents, which I found, quite frankly, silly. Like me complaining that, being cack-handed and -footed, I am discriminated against because I cannot play football for Man U!

Or as patently over-reacting as the recent regulation in the UK that all new houses have to be built for wheelchair users even though they comprise a very small proportion of the population, and to do so poses considerable practical problems for very small houses and flats.

* Before anyone jumps on me, I have no problem at all with making reasonable accommodation. It's the unreasonable PC-driven stuff that riles me! As someone with sight problems, I accept I have to work within them rather than expecting the world to go out of its way on my behalf.
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Old 05-28-2008, 04:49 AM   #7
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Quote:
Originally Posted by LoisWakeman View Post
but reasonable men and accessibility zealots

* Before anyone jumps on me,
No, you have it right, "reasonable vs. being a zealot." Accessibility issues can create virtual religious fanatics on the issues. Then, cast all reason aside, as the real issue is the superior morality of the crusader. But in cases of fanaticism reason does prevail, as reasonable people are patient: (unless lawyers are involved, and then more lawyers are needed, but we'd better not go into all that).

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Old 05-29-2008, 05:21 PM   #8
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Originally Posted by iamback View Post
This method certainly discriminates against those who cannot see the photographs, and even if we just forget for a moment that an auditory CAPTCHA has its own problems, it does not even lend itself to an auditory alternative (unless you think listening to nine different longdescs would qualify - which I don't).

There are plenty of accessible ways to weed out the bots, including ways that humans won't even notice but trip up the bots. Die, CAPTCHA, die!

(Working on implementing those "plenty of accessible ways" for Xaraya and Wikka wiki...)
Agreed... CAPTCHA stops me from leaving comments just because it means going through many steps

   
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