SOLVED Ban risk for family PC's

I saw a guy post about his dad creating a second account and the accounts getting banned. I'm confused here, as that makes it seem like it's one account per computer or you get banned. My brother has a beefier machine, and I use it to game whenever possible, as it is a much better gaming experience than my laptop. When he wants to play the game, I don't want to get us banned just by logging into the same machine.

Is there some sort of algorithm that automatically bans accounts if they log in the same machine? Or is this specific to abusive behavior like farming two accounts to give resources to one of them? Can I not trade at all with my brother, or is it fine as long as it isn't blatantly boosting one of the accounts?

When searching the forum all I found were some posts that warn in red caps not to make multiple accounts for material production. The only other post is by this one guy who was supposedly banned just because his dad made an account. Honestly I'm fine without trading at all if that risks me getting banned, but I hope playing on the same machine won't get family members banned.

 

I would assume that was the case normally, but that one post I saw about someone's dad getting him banned by making a second account worried me. I honestly don't even know what a ranked sparta match is yet, as I've just downloaded the game and done some of the early tutorial missions. Good to know multiple people can play on the same PC and even trade as long as they aren't boosting an account. Hopefully this post helps anyone new who may have similar concerns later on. Thanks for the help.