Sanctions against Russia become heavier by the day, and an answer to that question might not fit the situation in a few weeks. Please consider the situation as of today.
Say a website located in the US works on a subscription-based business model.
The website offers some services, and anyone on the Internet can subscribe to the site and benefit from those services. The subscription being around $1~$5 / monthly.
The services are of an "entertainment" nature (gaming...).
Is it going against the sanctions (from a US PoV) to let a Russian national living in Moscow subscribe to the site, Internet-pay to an US bank, and benefit from the services? Would that collide with the sanctions? (provided that the payment service itself still works from Russia)