[kang]

Firstly, I really want such project to exist and will start working on it next year if nothing successful exists by then.

I am not advocating PoW for security (yes sure PoS & other federated schemes can do it) but for spam. Your solution is a pre-deposit. Nothing is impossible but good luck having creators to pay to blog. [Try brainstorming a PoW akashacoin & you will see the secret sauce that solves this pre-deposit problem]

Being decentralized certainly makes the geek in us happy but is only relevant to user if it brings some advantage, here it being censorship-resistant which takes you to the controversial topic problem.