Microsoft Acquired Nokia renamed it Microsoft Mobile and the next thing you know windows phone is dead. You never know when or how they will pivot from one idea to another. In the case of Windows phone they were trying to get in to the smartphone market and they could'nt get hold of the market and had to let go. Now Microsoft acquires GitHub for 7.5 billion Dollors. They would definately expect some return and make changes to the platform to get the returns. So in my opinion, with all these risks, people should know all their options and alternatives, back up their code elsewhere and stay aware of the changes that will come. Then when the changes come they can easily jump ship if they are unfavourable. I have already created a GitLab account and hope to copy (not move) my code there. Just in case, things go south with GitHub.