In order to get a better picture what what's going on, I'll need to cross reference the churn to security issues, but this isn't something my tool will support until later in the year.
Only thing I can add to all the other reasons already mentioned is the most obvious one that gitlab has received a lot of press and exposure during the last 2 years and this in turn has made the number of eyes on the code grow.
As with any software project; there will be bugs.
As with any open source project; there will be eyes on the code.
- They are very open about security vulnerabilities and fix them fast.
- There are some inherent defects in their software that cause these security vulnerabilities to come up so frequently.
I'd like to believe it's the first.
EDIT: formatting.