Can anyone list some solutions combining:

1) Onchain (/ offchain) reputation
2) Posting Anonymously via ZK (...or other permanent encryption method)

I'm super interested at the intersection here.

My thought --> Do trustless systems care about identity? Or do they just care about your activity above set thresholds?

Something like Bandada? https://pse.dev/projects/bandada

Currently helping on it - there’s no in-depth documentation atm but definitely happy to ask any questions. 

cc @andyguzmaneth

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This is cool. Do you know what their main addition to the Semaphore protocol is?

Bandada can be seen as UI on top of Semaphore for on-chain groups but the differentiation point is that Bandada can handle off-chain groups w/ different join methods: manual, invitations, or third-party credentials (e.g., Github, Twitter, or other web3 tbd) and optional on-chain verify proofs functionality.

Bandada is an application that utilises the Semaphore protocol giving you a fancy UI for group management. Then, offers an infrastructure (not tied to any backend tech) for implementing off-chain groups w/ a nicer DX with an SDK - everything not tied (independent) to Semaphore.