“Many voices arise now and then against risks linked to the Github use by Free Software projects. Yet the infatuation for the collaborative forge of the Octocat Californian start-ups doesn’t seem to fade away.

These recent years, Github and its services take an important role in software engineering as they are seen as easy to use, efficient for a daily workload with interesting functions in enterprise collaborative workflow or amid a Free Software project. What are the arguments against using its services and are they valid? We will list them first, then we’ll examine their validity. [...]”

carlchenet.com/the-github-threat

The original article is a couple of years old, but the points still stand.