Is it protected to imagine that Bitcoin shouldn’t be soft-fork backward suitable?
The one good thing about a tender fork over say a tough fork is that outdated nodes aren’t forked off the community in the event that they fail to validate all of the consensus guidelines. Within the case of a tough fork (a leisure of the consensus guidelines) an outdated node may reject a legitimate block after which be caught eternally as a result of different blocks can be mined on high of that block.
What are the technical dangers to the safety of particular person pre-Segwit node runner?
Should you do not test all of the consensus guidelines (together with all tender fork guidelines which were activated) then you definately threat accepting an invalid transaction or invalid block. If the vast majority of different full nodes and different miners are implementing these guidelines it should not be a giant deal. You may find yourself later following the chain with most proof-of-work (PoW) and discarding the block you initially thought was legitimate however turned out to be invalid. However you might be in a stronger place if you happen to do not depend on others and validate all of the consensus guidelines your self.
What are the detrimental results to Bitcoin as an entire if hypothetically majority nodes switched again to non-Segwit model of nodes?
If the vast majority of full nodes and miners did not implement all of the consensus guidelines there’s a a lot larger threat of an invalid block being accepted by the community for an extended time frame leading to bigger re-orgs and extra confusion on the most recent state of the blockchain. In an excessive case miners may proceed mining on high of an invalid block eternally after which it would not be clear what consensus guidelines have been being enforced and which weren’t. Your complete system breaks down if full nodes and miners aren’t positive what the consensus guidelines are and which consensus guidelines needs to be enforced. If just a few full nodes do not need to implement all the foundations it is not a giant downside. If your complete community would not need to implement all the foundations it begins to develop into a a lot greater downside.
