Very interesting! Did you check that you can see the messages in algoexplorer.io? For example: https://algoexplorer.io/tx/6YK3MFZB7OW74CUUAR4K23VHFVSAKRLZQ5ACSQE6IPNSGGV2ZTOQ
Check in the Editors View
Very interesting review. I’d add that the timing is very important. If you plan to have something fast you’ll need a public blockchain. Most private blockchains aren’t mature enough for production.