Here you can see the people who have earned the most Launchpad karma while working on Percona XtraBackup moved to https://jira.percona.com/projects/PXB. (What is karma?)

Overall

Person Project Karma Total Karma
wuweigang 2 2
Davi Arnaut 1 1

By category

Person Bug Management Karma Total Karma
wuweigang 2 2
Davi Arnaut 1 1