Answer was given...... As far as what is posted above this, i been laughing since i read it.. If you need spam too determine off times you are a horrible player.
Spying on a city and seeing full resources for hours apart, HC no militia is another, use the countless Web tools (IE Grep Intel, Oracle and more) Attacking with no response and countless other methods. It does not take much time to determine an offline player. In fact its more work too spam a player then to find off times.
Or you can man up and take a player online which too me makes this game fun, I sailed a 1hr 40min CS and landed on a active enemy (either you make it or not that's the fun part) Yes easy takes are part of the game and i and many do that too but i can take an active player just as easily and without spam, its called teamwork. The only thing spamming does is make you a target or another who gets it as retaliation..
Also when an op is run its not spam its targeted REAL ATTACKS on 1 or several cities with 1 or many CSES on same or diff city.
Throwing attacks everywhere attacking recalling, minimal units to a city that's spam no real goal other then annoy or wear down.
Want city taking Lessons Just watch......