I understand, don't get me wrong, 99% of stuff in crypto is hot garbage, but having a global database that isn't controlled by any one (or even dozen) entities is pretty powerful. The 2 guys that started farcaster could quit, or get hit by a bus, or decide it's not profitable enough and pivot, but at least you have control over your profile still. If reddit was decentralized more, they wouldn't be able to shut down their APIs for 3rd party clients.
Trust me I understand the criticism of block chains, but if we want open source and the internet to thrive and not be controlled by companies, we need a global layer that is neutral.