4xBB + 1 per limper… why?

By NewUser2006:
In the SSNL FAQ, Skeme has a section that recommends raising 3-4BBs + 1 per limper in order to "protect your hand" and some other mumbo jumbo.
It seems to me that raise size only works optimally when there are a ton of limpers already in the pot, or you have a hand that it […]