There has been a theme of instability with Gitlab.com over the last week or two. I'm not sure if it's growth related (they've seen a steady increase of users/traffic) and they've reached a scaling peak. OR if it's technically related - they've been doing a number of different infrastructure changes over the last few weeks which make a material difference to the main layers of the service.

For me the real test here is how they respond to this. As a paying customer I want to understand the issue, the efforts to prevent this in future and how they communicate this.