4chan is a controversial and largely unmoderated discussion forum. The site, created in 2003 by then 15-year-old Christopher Poole, allows users to post anonymously without so much as a pseudonym. It has been a haven for profoundly offensive antisemitic, sexist, racist and graphic content.
On Sunday, 4chan owner Hiroyuki Nisimura posted an apology on the forum, stating that the site "can't afford infrastructure costs, network fee, servers cost, CDN and etc, now."
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Nisimura listed three options for 4chan's future: Slow the speed of the site, limit the size of pictures users can post and even close some boards entirely; add more ads; or have more people sign up for its paid feature, 4chan Pass.
Nisimura, a Japanese entrepreneur who took over the site in 2015, wrote that 4chan recently cut down on the number of ads on its site due to ad serving costs. In an email sent to CNNMoney, he said that 4chan is not for advertisers and that "attracting advertisers is not [the] first option." He said relying on ads is "risky," citing ad blockers -- where users block ads from surfacing in their browsers.
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http://money.cnn.com/2016/10/05/technology/4chan-shutting-down/