There are plenty of legitimate reasons to pay with BTC. I love how friction-less and easy it is, especially if you get partially paid in BTC as well for your services. I love https://bithost.io and I guess you could ask Scott if he had any problems so far.
He gives you a limit of 2 instances (droplets) on signup. You can then open a ticket and explain what you intend to do and he gives you the desired number of servers. I give him access to the apps I'm working on to remove any doubt and be transparent.
I always think that malicious people find entirely different ways to get what they want without even thinking of payment. Hacking a box for example.