Also, how can a PoS coin be attacked using this? Does this mean that PoS coins are more secure as atomic altcoins than PoW?
Unlike hashrate (electricity), stake only has to be purchased once and attack forever, so therefor rental prices for stake should be much lower (since stake costs less than hashrate).
I think we solved the jamming problem with CLTV version of DE. So there was a positive outcome from this thread. I am happy that DE can work.