There has a been a significant increase in spam comments on this blog . So far I've only needed to moderate comments on posts that are more than 30 days old. I've resisted all urges to use the CAPTCHA system as I find it often difficult to use . If the spam increases and I have to moderate all comments, I am pretty convinced now NOT to use the CAPTCHA system - not because computers are cracking the code, but because you can now efficiently pay people to do it for you.
That's right, through the miracles of modern technology - the internet and cheap third world labor, spammers can now pay as little as 75 cents for someone to crack 1000 codes. Such a deal. So be warned all you spammers out there. You won't get to me. You're listening, right?
(It's a Friday afternoon at the end of a long week glued to the rheometer and I'm a little punchy. Have a good one :)
 Going from nothing to 2 or 3 a week is a significant increase, isn't it?
 Not the worry, I'm getting a prescription for bifocals in a few weeks!
I suppose spam can be considered a dubious sign of progress.
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