Nick Szabo, a prominent figure in the cryptocurrency space, has advised Bitcoin users to run Knots nodes instead of upgrading to Bitcoin Core v30. Szabo raised concerns that the latest Core version removes essential spam filters and permits unlimited data storage via OP_RETURN, which could lead to the inclusion of non-financial and potentially illegal data on the blockchain. He suggested using Knots as a temporary alternative and cautioned against adopting Core v30. The recommendation has sparked a debate within the Bitcoin community, with some developers challenging Szabo's legal reasoning while others back his perspective. The changes in Bitcoin Core v30 have highlighted a growing divide between those focused on maintaining financial purity and developers who prioritize simplicity and neutrality in the network's evolution.