We Could Easily Combat Twitter Spam Using CAPTCHA

My friend Mark has a neat idea.

Reply spam on Twitter is on the up and because anybody can send a (public) message to anybody else on Twitter (whether you’re following each other or not) there’s not much you can do about it until it happens. As Twitter expands, this is going to become more and more of an issue. A simple security measure that asked new users to authorise their tweets could all but end this problem overnight.

Yes, having to enter CAPTCHA

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