Hey folks! I'm https://twitter.com/aphelionz . One of the maintainers of OrbitDB. Happy to answer any questions you might have. I'll also be in the thread answering folks as well.
I want to build a reddit like community using orbitdb. But orbitdb can't freely add and remove user permissions. When will this feature be implemented?
CRDTs usually work as last-write-wins, meaning that if you have a key-value store, the last update to update a key 'wins' the value via the way oplog reduction works.
If you reverse that to a FIRST-write-wins log, you can grant permissions and ownership on a first-come, first-serve basis. Revocation, then, becomes the issue. What do you do with the records they already have? Questions like that are plentiful.
The approach most people take is to find workarounds or "good enough" solutions here, either by using encryption and allowing the encrypted data to be public, or by using some sort of other OrbitDB store as their ACL and management, and only giving select keys access to write to said ACL store in the first place.
Adding encryption into the mix though, particularly multi-writer, becomes exponentially harder.