Neither for me. I'm still at the stage where it is easier and far more profitable to raid NPC cities (see the guide section on using ballista and transporters for zero troop loss). Our alliance is at friendly status with most of the large alliances in our area, and I've yet to have received a single attack. I have been scouted about 15 times, but no one has got through my scout armies in my cities so they probably give up and move on to someone else.

As an alliance we had to run off a very young player who raided a member and then responded to messages with pitiful threats and abuse, he/she ended up teleporting all their cities away and we haven't heard a thing from them since.

We've also on a couple of occasions ended up recruiting someone we attacked after the banter between attacker and target quickly showed they took the game in the same spirit as us.