I have read that article before, it's a technical Hodge podge written to obfuscate the fact that it is a stand-alone ecosystem that has no grounding in bitcoin. RBTC is a shitcoin and SOV is a shitcoin

TheBTCManual

RSK is not a remora chain becaus it doesn't create a new economic token. It is a sidechain of Bitcoin. Stacks may be a remora but it doesn't reach to that level. I recommend the following explanation by Sergio Damian Lerner. https://medium.com/iovlabs-innovation-stories/bitcoin-sidechains-74a72ceba35d 

IgnaciobTato

bitcoin

Aside from LN do you use any other Bitcoin L2 platform?

I use liquid yes, but I wouldn't use RSK or stacks, they are NOT second layers, they are [remora chains](https://thebitcoinmanual.com/blockchain/remora-chain/), affinty scams that are trying to leverage bitcoin to sucker people into thinking they're still within the network