“Hybrid” memo proposal. Let the user chose between blockchained posts and volatile posts. It's a kind of scalability and marketing proposal. Pay for save!
How would the volatile posts be implemented? how would they be distributed? how short lifetime would still be guaranteed?
The basic idea is a memo "plugin" that you can use on reddit for example ( "post contents ...etc.etc." /u/saveOnMemo ). This way you can add censorship resistance on other platforms