You can create anonymous servers on DO with go-betweens like Bithost, allowing you to pay with cryptocurrency. This is a pretty easy solution for people with bad intentions (bots, scraping, black hat ...)

I run my own VPN on DO and almost always get hit by ReCaptcha. Even Google.com will put up a "we've noticed some unusual traffic from" page. Some sites like Zalando completely block me with just a plaintext error page.