[sixstringtheory]

What about high deletion amounts? I've merged PRs with hundreds of thousands of lines deleted and none added. It took quite a bit of sleuthing to figure out someone had left entire copies of directories side by side with different names, where one was completely unused. Conversely, someone had a huge addition to the repo that actually was total garbage.

[GartzenDeHaes]

A large change to the code base would indicate to me that the product isn't ready to ship or test, possibility. At the very least, it would prompt a discussion about the code and how we are managing it. Maybe we need some process changes or tools to prevent junk code from accumulating.

Edit: if you're talking about the math, I think "changed" includes added and deleted. So, it's the ratio of added and deleted to the total change.