[kapilkale]

I doubt this is a choice on Shopify's part; it's almost certainly coming upstream from their payments partners.

https://stripe.com/blog/why-some-businesses-arent-allowed

[rmc]

I understand how it's likely to cause trouble for the merchant if they allow pornographic items. But don't pretend you'll "defend to the death my right to say it". Here's a cause! Why not defend to the death?

[mikeash]

There are clearly some processors which accept adult products, as demonstrated by the fact that you can buy dildos online with a credit card. Why doesn't Shopify use partners that are more free?