No, because only a single node really matters: the next node to mine a block-- which may not even be reachable to you. Even if the attack worked just 10% of the time, that's like a free 10% rebate credit card for the attacker.
(and more generally, only a couple nodes matter at all for this purpose-- the set of nodes that could mine the next block)
Plus bch hashrate is so low the attacker can mine the next block themselves with rented hashrate, because the mining pays next to break even, renting the hashrate isn't a significant loss in the expectation.
(and more generally, only a couple nodes matter at all for this purpose-- the set of nodes that could mine the next block)
Plus bch hashrate is so low the attacker can mine the next block themselves with rented hashrate, because the mining pays next to break even, renting the hashrate isn't a significant loss in the expectation.