YSK: The proposal to freeze Satoshi's coins and invalidate old transaction signatures is actually a SOFT FORK. Soft Forks can still cause reorgs and chain splits, and they can cause new clients to be incompatible with old clients.

The article clarifies that soft forks, like the proposed BIP-361, can cause chain splits and incompatibility despite being backward-compatible with old clients. It challenges common misconceptions about hard and soft forks, emphasizing that both can disrupt the blockchain, though soft forks add technical complexity.