They might have an alt account which I do not know but it is difficult to say which if any account is a newbie but know little information about/ aware of the forum is an old account's alt. Though usually it happens yet we should check any other related info if there is. And until there is any offense/misdeed/breaking terms/rule we have nothing to do. But when any account takes part in anything that is not good then all the accounts are bad. The two accounts you have mentioned, except they are from the same country/language.