Curious as to what Gratipay was, so I did a little a research. It turns out the maintainers of GratiPay have handed over all assets over to Libreapay[0]. Libreapay appears to be a fork for Gratipay. This might be what you have been looking for!
Out of curiosity, have you had a chance to explore the Windows Subsystem for Linux (WSL)? WSL allows you to run your favorite linux distro with access to most command-line tools, utilities, and so on[0]. I have been a .NET developer for about 5 years now and recently began working in Ruby. The WSL had allowed me to effortlessly set up my Ruby dev environment, while still maintaining Windows 10 as my main OS of choice. While the WSL might not be a full on replacement to a linux OS, it is definitely a neat addition to Windows 10.
Not being able to opt your child out of DNA collections seems like what could be a slippery slope to a Brave New World. What's even worse is the level of misinformation surrounding the situation. Even if the samples are held under the assumption that they will be used for research, one should be entitled to opt-in, opt-out, and know what is happening with their/their child's DNA. A lawsuit here seems reasonable if not to stop this, to atleast shed light on the situation.
I agree that human nature is corrupt at its core, but the blockchain is not. Placing cryptocurrency's aside and realizing that distributed entities will allow us an attempt at curtailing the effect of these negative human qualities is what I value the most. The blockchain is a perfect example of a publicly accessible ledger that is resistant to manipulation after the fact, inherently making it a source of truth. Blockchain technology will not change the entirety of society (in our life time) but it has definitely become a catalyst for social change.
[0] - https://liberapay.com
*I have no affiliation with liberapayn just did some curious research.