Grease in based in MoNet, complexity probally is the only privacy compensation, the use case is turn Monero possible to have million TPS (see this post on Reddit).

And SeraiDEX

Monero is the libertarian money.

From Reddit post I found some useful information that I’d like to share:

• Neroshop is under development with very recent commits
• There is a reward for those who create a Monero plug-and-play I2P marketplace.