I have a metrics called LCMFC (last contribution minus first contribution) which can give you insights into how long people have been contributing for. In a fe

I have a metrics called LCMFC (last contribution minus first contribution) which can give you insights into how long people have been contributing for. In a few months, I'll be able to better segment things. I had (and will reintroduce in the future) a contributions insights tab that focused on labels, which I think can also help you understand how things are changing without actually digging into the code.