I don't know how you can have both censorship and censorship resistance in an immutable database.
In fact I wonder if it's possible to have censorship at all. Even if there are no fields for arbitrary user data, it'd be possible to encode data in the amount field.
What would a bank or stock exchange do if they found out illegal data is encoded in their databases through a sequence of stock market prices? Roll back all the transactions?
Exactly...unless we do some sort of ZenPub gating through which community has veto over what gets pushed to pub, we can't exactly roll back a recorded tx on chain. We really need to think through all options and tradeoffs.