In the quoted link Anonymint or whatever claims sidechains are technically not viable (presumably because of his altcoin-in-progress). All I did was ask for an explanation.
Guess I oughta check it out. Anonymint is obviously a very bright person. But very troubled. I gave up on him (her?) a couple years back. Always with the plan for the anonymous crypto that will bury all other cryptos. Yet somehow ... ... ... nothing ever delivered. Medical issues, you know.