Is it secure to imagine that Bitcoin will not be soft-fork backward appropriate?
The one good thing about a delicate fork over say a tough fork is that previous 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 rest of the consensus guidelines) an previous node may reject a legitimate block after which be caught without end as a result of different blocks can be mined on prime of that block.
What are the technical dangers to the safety of particular person pre-Segwit node runner?
In the event you do not verify all of the consensus guidelines (together with all delicate fork guidelines which have been activated) then you definitely danger accepting an invalid transaction or invalid block. If the vast majority of different full nodes and different miners are imposing these guidelines it should not be an enormous deal. You will 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’re 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 danger 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 prime of an invalid block without end after which it would not be clear what consensus guidelines had been being enforced and which weren’t. Your complete system breaks down if full nodes and miners aren’t certain what the consensus guidelines are and which consensus guidelines must be enforced. If a couple of full nodes do not wish to implement all the principles it is not an enormous drawback. If all the community would not wish to implement all the principles it begins to turn into a a lot greater drawback.
