So you prefer the blockchain spammed with
Stampchain's SRC-20 tokens and "Stampchain art"?
...
The worst thing is that these UTXOs can't be pruned, ever. If one of these outputs contained illegal information, it will stay forever both in the blockchain and in the UTXO set! I prefer the usage of OP_RETURN or even Ordinals instead.
Stamps are explicitly designed to be unprunable, despite cheaper, prunable approaches already existing. See
eg.