But some people say LN on Bitcoin will kill any purpose to use Litecoin. If individuals can do instantaneous transactions on Bitcoin, why would they use Litecoin? My gut really feel is that this isn’t the case. Even with LN, Bitcoin still can’t service each individual on this planet. I believe the calculation was that at 1MB blocks, LN and SegWit on Bitcoin can service 500M users. LN nodes will cost a fee for LN txns going by way of them and that charge will be relative to the Bitcoin network fee. So Bitcoin LN txns can be more expensive than Litecoin LN txns. It could make financial sense for a LN txn to go via Litecoin and back to Bitcoin to get the cheapest fee. Lightning makes this potential as a result of it permits the two LN to be interoperable. I don’t know that this use case can be economical or not, bitcoin but we won’t know till each LNs are constructed and running.
The only profit which may arise from having such an account can be that it may improve the ability to construct a credit profile and to (ultimately) borrow cash. That profit is not any positive thing, however, as the «free» Fed account does nothing to alter the underlying economic conditions that pushed many of these folks out of banking in the first place.
You wanna be a wise man and attempt to cheat the community by including a unsuitable transaction within the blockchain and broadcast it? Properly the math that the miners perform will catch that instantly, and your version of the blockchain might be flawed compared to the ones that the vast majority of the network has, and it will be ignored and discarded.