This is interesting but I'm not too sure about a blockchain-based chan. I'll wait to see what happens and reserve my judgement.>>66833417
Software developer here. There are several reasons why this would be a challenge.
P2P security still hasn't been figured out. Unless you want a small degree of centralization then you can have certificates along with public keys. For a completely decentralized approach look into CL-PKC (certificateless public key cryptography).
Where will the data be stored and how? Things like IPFS are promising but you need something automated. No one is going to have a shell open entering IPFS commands to save each and every post. I'm sure a script could be written to store posts but something like using torrents would be way better. Even then security is still a big issue with torrents.
If its truly peer to peer it will be serverless. This means that there will be no more 4chan.org
. There will be no 4chan as you know it. There will be no central authority. Pedos will fucking swarm the place even more than they already have. It will be up to the people to store the information for each posts on their own personal machines. This has pros and cons. The obvious pros meaning that I can browse /b/ and not bother with any pornographic posts or with Andy Sixx log posts. I won't ever have to see another banana post again. But it also means that cataloging posts will be difficult. If everything is p2p and there is no central location for posts where the fuck do you put them? If they're stored as torrents then uploading the files to something like IPFS will work just fine but the thread dies when people stop seeding (free rider problem). The thread is only really "active" when the seeders are online. If there is a mobile client that is lightweight enough for people to bother installing it then this may be feasible...maybe.
More to come (1/?)