Take a look at this:
https://bf4db.com/patreon
And this:
https://bf4db.com/banning
From the "Battlefield 4 Bans" section in the
BF4DB Policies & Procedures:
Linked Accounts: BF4DB issues bans to players, not just the account. Therefore, any
account that can be positively linked to a banned account will also be banned. An
account that has close or overlapping connections with another account sharing the
same IP address will be considered linked. Multiple accounts using the same Gravatar
address will be considered on a case-by-case basis.
Being a confirmed aimbot, I know the rules by heart