It's the first real attempt at trying to bring some proper structure around on-chain social assets (e.g., memecoins).
It's still really early in the socialfi space but Kaichi is going all in, giving creators access to the assets on chain and decentralising content (both on IPFS as default and directly to the Solana blockchain if you want) and not just doing tipping in crypto.
They offer tipping as well, but it's only one feature, not the ONLY feature; like so many other purported socialfi competitors.