[suddenclarity]

I reckon their growth was mostly killed by Microsoft purchasing GitHub and making private repositories free. Most of the open source community seem to be on GitHub anyway so it just removed any incitament for average people to join Gitlab. Once you're invested in one environment it takes something special to move.

[nicolaslem]

This. A while ago Gitlab was really the better option: mostly free and more features (CI, project management...). Github caught up on features and price so why bother going against the network effect when the alternative is not even better?