@katherined The only other example I've personally seen is the karma system that was (and maybe still is) used by the PHP project. Before the RFC process was instituted, I recall that the karma system seemed to hamper the language's development more than help it.

@katherined definitely hard to measure automated and based on metadata only, since contributions can vary greatly. E.g. issue tracking bonus systems lead to behavioural changes to optimise your footprint. Identifying high value contributions being well thought and based on experience is hard, also things like community building etc are difficult...

@katherined I prefer creating metrics to solve problems. What is the problem you want to solve?

@katherined we measure a wide range of contributions in @mautic using https://savannahhq.com (open source, available on GitHub). We use it to track growth, as a criteria for joining our partners program, and to give recognition to individuals and companies. I've done a few talks about it this year which are at https://speaking.ruthcheesley.co.uk/presentations in case that's helpful!

@katherined I'm still torn if the credit system for Drupal is +1 or -1.

It's +1 for attributing multiple users who ensured an issue came to fruition versus commit authorship.

I think it's broken in how we tied it to the organizations empowering the individuals. Let individuals say they're doing it for their employer or some other organization. But ranking in the services listing is wrong.