Yet another reminder that the US education system has horribly failed it's people...
The tariffs are only directly applied to imported tangible goods. A porn site subscription is a service, so it's not directly subject to the tariffs.
That said, the tariffs have wide-reaching impacts on the economy that impact almost everything, including services. Many businesses in the services industry depend on imported tangible goods, directly or indirectly. If their costs go up due to the traiffs, they will pass on those costs to customers. The higher prices lead to lower consumption, which slows economic growth and results in people losing their jobs. Businesses earn less, people earn less, everything goes to shit.
SLR isn't a US company so their exposure is probably relatively low. They do operate in the US and employee people in the US, so their costs might increase a bit. They may earn less too which could drive up prices. SLR doesn't exactly buy their foreign content like JAV either. They get the content for free and pay royalties.