The thing is...if your coop uses an extension bot for TW2 and logs into your account, you will be flagged even if he never uses that script/bot extension on your account AT ALL.They ARE innocent. And I don't mean banned today.
So, choose your coops wisely.
Regarding multi-accounting and coop abuse...it was obvious there was something going on in your tribe. I personally reported it after noticing something was off. Claiming your tribe is being targeted just because of where you come from is...not really bright. A lot of us are not from US or England either.