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Sorry, the trust algo is a moving target that is going to be very subject to radicle change over time. As I said, trust is a blunt measure currently and while it works kind of well, it stills need a lot of tuning, e.g. we have users who manage multiple accounts (which is fine) but upvote their own questionable content (not fine ... they are stealing everyone's attention).
So, I can only communicate the goal of the algo: users who provide value (ie contribute valuable things to the community) get trusted over time, users who distract or harm the value of the site get untrusted.