The simple answer is comment spam.
The longer answer is that no matter what I do to block spam, it is still relentlessly posted. I have just removed over 10,000 spam user accounts, and daily have to manage increasing numbers of spam comments. I love hearing from genuine people that the information on this blog has helped – but the overhead to maintain the comment system is simply too much.
If you’d like to get in touch with either of the authors, you can via Twitter
Sam is @sammcgeown
Simon is @simoneady
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