I can't really find very good info about prestige items on google. My old main from 8 years ago can't use half his equipment, which is generally raid gear. For instance, I can't use any Vex Thal gear, but can use the 2hb from the storm dude from Bastion of Thunder (now that's an accurate description...).
What can't a bronze or silver member use which a gold member can?
So far as I know, most raid gear. But what else? Can epics be used by bronze/silver members? How about LDON gear?
Many screenshots from ZAM are from before the f2p model so I can't find much info about this.