You can see who adds code to the software by looking on the GitHub repository.
https://github.com/steemit/steem/commits/master
Pulse will also give you some insights https://github.com/steemit/steem/pulse/monthly
You can see who adds code to the software by looking on the GitHub repository.
https://github.com/steemit/steem/commits/master
Pulse will also give you some insights https://github.com/steemit/steem/pulse/monthly