I2P is really cool tech, wish more people knew about it. In a similar vein: #hyphanet (formerly #freenet) and #nostr
and yggdrasil and lokinet
Lokinet is sus with its model imo. Unlike i2p, the idea of which is lowering the bar for being a node, it raises the bar impossibly high for most of us. If you have the insane sum it requires to host a node, it would be more useful to the world if you spend it on hosting good Tor or i2p nodes imo.
Is there anything actually interesting on it, or is it all just drugs and CP like the onion darknet?
Technologically, I2P handles large data transfers much more efficiently than TOR. That makes I2P useful for torrenting large files like Linux ISOs.
Just remember to forward the right ports if you can so you can contribute to the network!!
Linux ISOs are my all-time favorite thing to torrent so this does seem like it requires further research.