You're allowed to have as much in-game accounts as you want (separate accounts as you mentioned).
There are two types of bans, one of it is permanently where you cannot access FGunZ at all and the other one is by reaching 4 warnings which is called account ban.
If the user is account banned, he is allowed to log on his other account(s) and play on them as he is not neither IP, nor HWID banned.
As for flaming, if you cannot provide us with evidence, we will not take actions and decline your report.
