Gamification of commits - Achivements

Description

The use case here is purely for fun...

Proposal

It'd be kinda fun to implement achievements on commits. For example: If a user in the repository has deleted the most lines of code they get the achievement of "Code Butcher"

Links / references

Similar to https://support.steampowered.com/kb_article.php?ref=4462-UIOB-0425