Even if you’ve never been anywhere near it, the Mumsnet message board is legendary. Since it launched in 2000, it has changed the vernacular – “am I being unreasonable?” is not just a question, it’s a shorthand for the type of person who asks it – and introduced us to the penis beaker (one maverick husband’s postcoital hygiene regime, made infamous). It’s a screenshot of society, a cultural thermometer; if it’s happening on Mumsnet, it’s big news. And one of the most popular recent threads is about bins.

The post that........

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