They were using Mixpanel before, but they got complain from users, so eventually they added a proxy in front of Mixpanel (but that doesn't change anything since Mixpanel generates an UID, so what's the point of hiding the IP ?).
It's used for tracking user performance when distributing BAT (otherwise you would have no referral program possible), that's how they distributed the initial 5 USD
That was for the website, not for browser telemetry -- we switched to self-hosted Piwik (now Matomo) instance.
For in-browser telemetry, please see https://brave.com/privacy-preserving-product-analytics-p3a/. Low-dimensionality data (a few bits of answer) given to randomly timed unlinkable survey questions; anything hi-D is in the future and will use PROCHLO.
They were using Mixpanel before, but they got complain from users, so eventually they added a proxy in front of Mixpanel (but that doesn't change anything since Mixpanel generates an UID, so what's the point of hiding the IP ?).
https://github.com/brave/metric-proxy
It's used for tracking user performance when distributing BAT (otherwise you would have no referral program possible), that's how they distributed the initial 5 USD