KSI v Logan Paul: Twitch pirates outnumbered YouTube payers
Amazon's Twitch is facing criticism after reports that pirated streams of two boxing matches featuring YouTube celebrities that it hosted attracted more viewers than official channels.
At one point, more than one million users were watching coverage of the KSI v Logan Paul and Deji v Jake Paul bouts on Twitch, according to the Verge.
By contrast, YouTube's pay-to-view stream peaked at about 800,000 viewers.
Twitter's Periscope also hosted pirated streams, but to a lesser extent.
It is not clear how many people paid to use a special video feed provided as an alternative to YouTube. However, 15,000 tickets were also sold to spectators who attended the event live at Manchester Arena.
Twitch has provided a brief statement.
"Our community guidelines prohibit uploading any content that a person does not own, does not have the rights to, or are otherwise not authorised to use," it said.
"Doing so violates our terms of service and may make their account liable to DMCA [Digital Millennium Copyright Act] takedowns by third-party rights-holders. We were responsive to related reports."
Twitter has not issued a response.
The amateur celebrity boxing matches had been billed as the "biggest event in internet history" thanks to the popularity and controversy of the British and American fighters involved.
The show cost £7.50 or $10 to legally watch online.
Some users who paid the fee reported experiencing technical problems, which may have spurred them to hunt out pirated versions. But social media posts indicate many more sought out the illegal streams from the start.
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Many of the Twitch pirates used fake titles to hide their streams, such as "Free Fortnite skins" and "Playing new UFC game".
But screenshots indicate some of the more popular examples still managed to attract hundreds of thousands of viewers simultaneously.
This prompted criticism of both Twitch itself and those who had tuned in.
But one expert suggested it would have been a surprise if Twitch had done more.
"It's actually very difficult to prevent the piracy of a live event where thousands of people are uploading new versions of the stream," commented Mark Mulligan from the consultancy Midia Research.
"Often it's actually humans - rather than just algorithms - that are looking for them, and to be fair to Twitch a good number did get taken down.
"But ultimately the question is how much competitive imperative was there for Twitch to be enforcing copyright for YouTube content - it has to deploy its resources where it sees fit for its core business."
After scoring a draw on Saturday, KSI and Logan Paul are set for a second fight in the US.
Meanwhile Jake Paul, who won the undercard match, has challenged the singer Chris Brown to a bout.
This should give the YouTubers and their entourage a chance to make up any lost earnings from the weekend.
But Mr Mulligan suggested no-one involved was likely to be feeling out of pocket.
"It was noteworthy that Jake Paul announced a new clothing range after his fight," he commented.
"These are entrepreneurs with multiple revenue streams, and ultimately this event has done a huge amount of brand-building for them that will generate a lot of revenue."