So what if people use a monster to train their magic resist up.
I'm sorry to hear that it took that one dude a year to train his resist, what a waste of time and a pain in the ass.
I have a better way to train resist, but if someone wants to use spectral spellbinders, then leave them the heck alone and doan tell them how to build their chars or try to enforce your expectations of UO on them. eh!
Not all of us are trying to wait a year for GM+ resist, nor walk 10 miles to school and back, uphill both ways, in the snow every day of the year, and always in the dark.