Overall, I am very grateful that gitlab exists but gitlab.com does make me feel like gitlab over all is a slow piece of software.
The only Enterprise Edition feature that is under discussion is merging without creating a merge commit. We're considering to open source this to make this move work.
GitLab.com still feels slow but running an instance specifically for GNOME should be fast.
I believe it all started when they got a bad rap for doing unspeakable things like supporting minorities to get into the industry, plus one actually wrong decision by a customer service rep approving a complaint about some word in some repository that could be offensive, but clearly wasn't in the context.
Next followed about a month of constant griping about how awful github is, followed by many many features being released which had been in the pipeline all along.
Meanwhile, everybody on HN was trying to find an alternative. Since going back to Sourceforge would have demonstrated slightly-to-obviously that Github was among the best things that ever happened to OSS, the heavy-hitters moved all their projects to Gitlab, which was a third-rate clone of Github at the time, and may or may not have advanced to second-rate since.
Those two projects are, apparently, really enjoying GL.