On Tue, Jan 22, 2013 at 8:18 PM, Luke Welling WMF lwelling@wikimedia.orgwrote:
That was not the end of the problem I was referring to. We know our specific captcha is broken at turning away machines. As far as I am aware we do not know how many humans are being turned away by the difficulty of it.
It's at least impossible for blind users to solve the captcha, without an audio captcha. (unless they manage to find the toolserver account creation thing and enough motivated to do that)
I am not convinced of the benefits of captcha versus other spam filtering techniques.
Cheers, Katie
It's a safe bet that it is non-zero given the manual account requests we get, but given that we have people to do those kinds of experiments it would make sense to get a number from them before making any drastic decisions based on a reasonable gut feeling. I don't think anybody claims to have a perfect solution to the spam vs usability balancing act, so it's possible we'll try (and measure) a few approaches.
Luke
On Tue, Jan 22, 2013 at 10:16 AM, Federico Leva (Nemo) nemowiki@gmail.comwrote:
Luke, sorry for reiterating, but «brainstorm solutions to a "problem" before we measure the extent of the problem» is wrong: it's already been measured by others, see the other posts...
Nemo
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