I believe you are more experienced than me, but I don't know if you noticed a point created by
hilariousandco on this thread. Although I am not sure if its official rules or it's just his own opinion but I strongly believe this is something to consider leave negative feedback. Here it is;
Can I give merit to my alt accounts?
No, this is frowned upon and will almost certainly lead to you receiving negative feedback if discovered.
Anyway, do you deeply believe that a merit source applicant should abuse merit system? Just express your honest opinion and forget about gang or nationality for quite sometimes.
Regarding handle alt account still I believe you know better than me why, how and where to be use. There is no such as restrictions from forum admin expect ban evasion. But if someone create alt account for abuse then most likely should handle with trust system and trust system stand to prevent such as abusive behaviour.