It's extra work for scrapers. They pretend to be upstanding citizens (Chrome UA from residential IPs). You can more easily block those.

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20after4 5 days ago | parent [-]

A lot of scrapers are actually utilizing some malware installed on residential user's machines, so the request is legitimately coming from a chrome UA on a residential ip.

	▲	dragonwriter 5 days ago \| parent [-]
		Well, “actually”, perhaps; “legitimately” is still a stretch.