- An API or a NNTP interface.
I think that as many, many, many forum admins have done time and time again... You've just reinvented the functionality request of the uucp era internet, except with JavaScript instead of curses... Besides, everyone's good loot is in their browser, not their shell anymore. NNTP is great.
The daemons have handled a lot of abuse, and continue to. I believe someone created an "alt.bitcoin.test" already. The protocol is purely peer to peer, prima facie.
Hashcash to pull subjects and get content, coin or barter to post and be heard beyond your direct peers. Minimal cost for recycling of large chunks of previously delivered recent text along the path (quotes). The idea of focusing on HTTP is kinda silly, otherwise we might as well call it Layer 8. The should be the focus of a good protocol, not the display (imho).