to reduce multiple account bounty with merits system is enough, maybe we just wait how effectively this merit system works to reduce spamers
yes its help but it would not stop people to have multiple accounts specially if they already at middle rank when merit was launch they have enough merit to gives to their alts but it help to make them productive by posting much quality post to be able to earn merit to other users.
In essence a person will get motivated to be able to contribute much better. But still multiple accounts may not be eliminated completely, we know that many people try to do it because all people already know that BTT account is very valuable, its value will be far drastic than before. Now everyone who wants a much higher level then they should try to give the best they can do. So real spammers will get reduced and nowadays it will be more real account because everyone is focusing to improve itself.