tbh i dont think it should be limited.. the reason being.. everyone knows some have many stakes.. it will always be there to see in the nxt blockchain history. i just think setting a limit is only going to cause trolls to say that nem core devs are trying to cover the fact that some people claimed many stakes.. its better to just leave this out in the open and let it be what it is..
Thats the reason why I voted for unlimited amount of stakes.
I don't want people to have more than one stake and thats why I myself just bought one, but setting up a rule which can't be controlled will just provoke people and/or make people laugh about the devs/nem community for believing they can control that rule.