[paolo]

I don't see the use of being able to attack them if they're attacking you. They're smaller and will probably have less to no roids. Is the point to fleetcatch them? What would a big player have to gain? Easy roids? Satisfaction?

If you would want this option, I feel the option of attacking your target's defenders should also be made available. They're hostile to you, as you didn't attack them, but they've decided to join the battle (and the total value could be higher than 'your' bash limit). So why not be able to attack them aswell? Why protect def planets? (/not real option)

The problem in this case is the bash limit, not the cooperation. The cooperation should be aplauded and encouraged, as it will increase team work and playing together. Maybe you're right that this bash limit should be lowered to suit today's playing field.