if your tribe gets disbanded because your stupid anouth to set an acount sitter you dont nessesarily know then its your own fault.
Disbanding a tribe through this method no matter how imoral it is is not against the rules. if i were presented with an opertunity to disband a tribe if i were loosing a war i would do so but as a last resort...if this gives you the advantage through causing panik then hell go for it. my point is its a perfectly valid tactic as hated as it may be. If you are sitting a duke acount or similar you are well within your rites do as you wish to a tribe be it disbanding/banning/forum deleting or recruiting etc etc
Promoting yourself through a sat acount to the best of my knowledge is not illigal (correct me if im wrong) as it does not benefit your villages/acount directly. i would like to say at this point that i am not promoting/encouraging this act in any way.
However if you were to use the sat acounts troops for the benefit of your village that would be a punishable offence as it effects your villages/acount directly (meaning your villages benefit from someone elses work) (again correct me if i am wrong)
As for mails, again to the best of my knowledge reading/sending and/or storing from a sat acount is not against the rules.
if you do not want your mails read i sugest you save them to a word document or similar. again if a sitter can gain advantage in a war/skirmish through this method it will be done and to the best of my knowledge is not punishable as it has no direct effect to your acount.
so basicaly Doing anything with a sat acount to benefit you acount/villas directly e.g support(which may i add is not possible since the makers of the game have disabled the ability to support yourself via acount sitting) is a punishable offence as it benefits the player directly.
If ive missed anything out (which im sure i have) then please add to it