My other accs could not directly interfere with my account anyways since they all landed on different servers to my main account so I couldn't use them for +2% possession in all my games even if I wanted to and they are all over 10 levels lower than my main team. I can send gifts like boosters/skill points but theres already enough neighbours on there that send all 4 gifts everyday to me, the only other thing is to send Jersey/Logo without using tokens from main account, they are not exactly expensive items anyways.