Author: T.Tutor (16 Feb 13 9:41am)
It's almost always XRumer updates, they beat Question/Answers a while a go...
One of the methods XRumer used was to hold a competition for humans to complete the QA's
(XRumer uses a local TextcaptchaForums.txt and central QA database)
There are plenty of other Captcha's available (but QA captchas have lost the battle). If you carry on using QA, you're playing a game of Russian roulette.. eventually someone will human verify it, and then it's available to all XRumer users (the flood of bots come through)
Edit: okay, if the high ones are getting through, it's setting specific
Post Edited (16 Feb 13 9:43am)