I am wondering if anyone has used crypto currency to exchange for services. Determining worth isn't the easiest, due to high fluctuations, and it can take some time to transfer using some of the more popular systems, but it is nearly untraceable. For providers that require larger web payments (think pornstar), it may not be a bad way to go.
Bitcoin is the obvious standard, but etherium and ripple are good options too. Fyi: ripple has gone up around 36,000% this year and will likely get a large jump. Currently it is a bit of a pain in the ass to buy. Cash to Etherium on coinbase, Etherium to ripple on binance. Coinbase is likely going to be offering ripple exchanges soon, which will make purchasing it much easier and popular.