Number one.
You cant destroy your own city if you have explorer or merchant doing mission
This is a just nonsense and i cant figure out the reason why you should not be able to do this it just slows you down your plans and goals for no practical reason and i don't see any problem if it would be removed, this rule only makes people count minutes and second while staring the screen because they want to get rid of the old town and deploy new one.
Number two.
Low ranked players attacking high ranked players
This thing have been on the table before and have got thumps up and down from players, i agree that you should not have to be able to attack lower ranked players but if low ranked player attacks you the higher ranked player than he should be ready to fight with him like a man instead of being able annoying you like jerry is to tom(jerry hits tom in the face and runs back to his mouse hole where tom cant reach him) so i think it would be more than fair to be able to attack the lower ranked dude inside next 12hours or so after he have attacked you.
Number three.
In game chat, yeh people have been begging this tho happen and i have found only one comment by the administration about this subject and it vent like, just use your mail system and shut up. It's just lame and fatal error that there isn't one it would bring people closer to each other helping of making friends, enemies and allies making the game highly more enjoyable also helping navigation with clan raids/wars, world,clan and private chat would keep people playing the game more and enjoying it showing off and sharing jokes....HAPPY TIMES
! and making it happen it would not mean the death of your precious mail system. I thought we were living on year 2012. You can make it to pop out from the left side of the screen just like the Construction Queue pops out from the right side. People are getting bored without this.Well thats about it.......for now.