I know a guy who runs an ISP. He had an Ookla test server available to everyone. Briefly. Then he noted how much it was costing in bandwidth, that ignoring the extortionate Ookla licences. Good way to boost traffic load to justify peering and discounts on transit when you're relatively small, though!
YouFibre Manchester is mine, though. I may only use it once every 3 months or whatever but still mine. Will raise a ticket.