Cryptocurrency is now the driving force behind cryptographic security research. Much of that knowledge is inside a collection of interested minds, usually working in the field. They will publish papers, but it can be tricky to find and digest the right ones from the vast paper stack.
Want to know what weaknesses have been discovered in Ethereum's EVM, smart contract constructions; Bitcoin node code; proof of stake 1.0, 2.0, 3.0; BigChainDB's use of clustered RethinkDB; Permissioned ledgers supported by certificate authority based key trees, etc, etc? Me too!
Aggregating this information into a nice structured and thoroughly referenced wiki article has not been done, as far as I am aware. Such a (forgive me...) centralised knowledge base would enable speedy due diligence and help direct research into the dark forgotten corners of the science.