They no longer work due to the inscriptions hack and the utxo set bloat. Stronger more expensive node software is required to run nodes now. Imagine how difficult and expensive it will be when the op_return limit is lifted. Plebs will no longer afford running nodes similar to etheriom and other shit coins. Last thing we want is to become proof of stake or fiat, but that's what will happen if we give up on running our own nodes.