dorje - just war somebody. if you catch them with their pants down (which you cerntainly could if you didn't put a 48 hour notice clause into every NAP) you would reap tens of thousands of acres in a few days, with reduced risk of retal if you catch someone else dicing.
i think its the notice clauses that are causing much of this problem. people at the top have the opportunity to change strats before they get into a conflict (entirely due to player agreements, not mechanics) so dicing works for them while there are no threats.
if you remove that threat buffer, you remove the appeal of constantly being in a dice build. not a mechanic issue. entirely a player issue.