The Byline Times is indeed very much an activist publication for a particular faction of the British left, and not the most accurate one generally; if I remember rightly they were one of the main publications pushing the unfounded and bogus claim that Leave backers had bet billions on a no-deal Brexit destroying the British economy, for example. Kind of surprised to see them on the HN front page; they're the kind of more flamebait than light politics that the site tries to avoid.