You can think of Kusama as an early proving ground for things like upgradeable runtimes, on-chain governance, and parachains. Developers can stress-test new technologies to run experiments or trials in a Polkadot-like environment.
Kusama (KSM) just got listed on KuCoin with trading pairs KSM/BTC and KSM/USDT.
See this: https://www.kucoin.com/news/en-ksm-gets-listed-on-kucoin/?utm_source=tftj