No, if they are then they should also banning the account with the same ip address of the banned account.
Gave my little nephew some wallet funds with my Paypal that has the same email as my Steam account.
Never took into consideration he might be a dumb kid and get himself VAC banned, if he does would it cause my account to be banned as well? Considering they've started to ban accounts with the same phone numbers.
I figure I'd be fine since people have used the same email on multiple accounts and never had bans transfer and Valve loves their money but I wanted to her some other opinions.
No, if they are then they should also banning the account with the same ip address of the banned account.