Getting people to pay in BTC is not easy, particularly when you're self employed and not providing mining hardware or system hardware.
I write - and unless a client already has BTC and is willing to pay in them, it's just far too much headache to try and convince them to jump through hoops to work with me when everyone else accepts fiat with no questions asked.
Besides, several of the clients I work with who do have BTC still choose to hold their fiat rather than use it to pay for articles and such.
I don't see how I could make it any easier - but maybe someone here has a suggestion? Scroll down to see the payment options (BTC and PayPal).
https://hjbuell.com/copywriting/