You don’t need a review to implement code. You implement the code first then have it reviews by others to make sure the code works and is safe.
Also this website (powered by the Condenser) is not the blockchain. It’s just a web UI that uses the blockchain which is another piece of software.
It’s decentralised because you can just create your own website (like Peakd) that uses the same blockchain.
Thanks for the clarification I am not a blockchain developer or have very limited knowledge about software or blockchain development that's why struggling to understand these things
Anyway why you not give upvote to my comment 😜