the tenets that Satoshi did get right were the economic ones, mainly that of a fixed supply with a fair distribution.
the market has invested accordingly based on those. by allowing SC's to change or distort those economic assumption will cause confusion and uncertainty in the Bitcoin price.
we're seeing it right now.
I don't see how SC's can distort the original bitcoin fixed supply rules without being a total sham that no one will adopt.
If side chains allow creation of new coins/tokens not originating through the 'two way peg' then why would anyone in their right mind use them?
Nobody would use that sidechain if those new coins/tokens were not backed in some other manner.
Edit: would appreciate an answer to this one please
Sidescams can propose any economic model they want, no different than altcoins. unfortunately, some ppl will be lured over to them and lose BTC.
when lots of that activity occurs over years, then i will propose a truly revolutionary idea; let's totally separate these Sidescams technically from the main chain so as to not let ppl lose their BTC! everyone will then say, "great idea!"
Just like everything else in this world from used cars to altcoins you can get scammed. One "sidescam" does not mean sidechains are a bad idea.
The classic example of a valuable sidechain is one that allows native support for other securities, bonds, backed commodities, including atomic anonymous decentralized exchange. This can be done more efficiently than overlay coins.
You could imagine geographically isolated sidechains that take alleviate the scalability issues with Bitcoin.
You could imagine a chain that orders potential transactions on an average of a 5 second window, potentially in a pseudo-centralized manner. For example, the entity that found the prior block gets to order potential transactions until the next block is found. This could solve the zero-confirmation problem.
You could imagine something supporting decentralized data storage, or any other collective enterprise from DACs to web forums. Demurrage pays your monthly membership fees (which pay the developers of the system), but you can buy and sell data storage out of this account so if you offer enough storage into the system your monthly fees are paid and you even make money.
You could imagine "inverting" the bitcoin database so the UTXO set is what is mined, and the blockchain is the history of UTXOs. This and other features could make a blockchain that is much lighter-weight for non-miners. The advantage here is that hardware wallets could be made smaller, for less money and more functionality put on the wallet vs the POS.
I think that services that use microtransactions haven't appeared yet because it is a totally new concept, because it is inconvenient with bitcoin, and because they are accused of being blockchain spam. But, I think we will start seeing them on the bitcoin ledger because altcoins are failing and because the SEC may start looking at appcoins (or at least pre-sales of them) as a security. Then the blockchain will truly go exponential and you guys will get to experience the fruits of your labor to marginalize these technologies.