I don't want to change it. There's a risk that those who now play with for example 4 boxes would quit when we limit it to 2 boxes. And as you've said, nolifers would still use two computers or so, so they would have bigger advantage than now.
Okay, someone, who plays with 4 boxes doesn't need anyone to his "party". Then just ignore them and find someone who also wants to play only one box.
I don't want to make any big changes after half a year from server start...