[wakey]

The original point of the PA CAPTCHA was that even if the it could be read via OCR it couldnt be answered by a bot as the questions required a certain level of logic to be answered.

Somehow though we have ended up moving away from that to using sums, something which if it is OCR'd can easierly be solved by a bot while being failry annoying for real people.

I would much rather go back to the logic questions that couldnt be answered by a bot without the bot writer knowing all the questions and answers and having them their for the bot to call on but if we are going to stay with these none logic questions then we may as well move to a copy this word/ sequence of letters method than the annoying maths ones