This sounds like it's related to Operation Choke Point. Basically, the DOJ is looking into whether banks are ignoring high fraud industries, like payday lenders. So the banks have been also preemptively purging all accounts that are porn related, since they have a high fraud rate.<p><a href="https://news.ycombinator.com/item?id=7670838" rel="nofollow">https://news.ycombinator.com/item?id=7670838</a>
<a href="http://www.washingtonpost.com/blogs/wonkblog/wp/2014/04/16/operation-choke-point-the-battle-over-financial-data-between-the-government-and-banks/" rel="nofollow">http://www.washingtonpost.com/blogs/wonkblog/wp/2014/04/16/o...</a>
A dupe of <a href="https://news.ycombinator.com/item?id=7761346" rel="nofollow">https://news.ycombinator.com/item?id=7761346</a>. Not sure which is the better article, so we'll go with the earlier one (which also happens to have more upvotes).