Interpreting ownership and activity patterns in lib/

[SushantVerma7969]

I've been experimenting with a git-history analysis tool and ran it against Express.

For lib/, it reports roughly 65% historical ownership concentration around one long-time contributor. That contributor hasn't committed to the repository in about 2 years.

Looking at commits touching lib/ in the last 6 months, I found activity from 5 different contributors, each with a single commit, rather than one or two people showing sustained involvement.

I'm not trying to flag a problem. I'm trying to understand whether this kind of pattern is actually meaningful.

For people familiar with Express:

• Does that roughly match how lib/ is maintained today?
• Is historical ownership concentration useful, or mostly an artifact of who originally wrote the code?
• What signals better reflect who currently understands an area well enough to review and maintain it safely?

I'm interested in understanding where commit-history analysis is useful and where it misses important context such as reviews, triage, or informal maintainership.