While IPFS has been used successfully for censorship resistance (ex the Catalonian independence movement: http://la3.org/~kilburn/blog/catalan-government-bypass-ipfs/), I completely agree that anonymity is not something that IPFS claims to support right now - and users should be very careful in how they use the network for censorship resistance. While there have been some experiments in this space (ex OpenBazaar's onion/tor transport for IPFS: https://github.com/OpenBazaar/go-onion-transport), none of them have been audited for reader/writer privacy.