+100 Need rolls in Raid Finder

The Raid Finder will give Need rolls a +100 modifier if your Role in the instance matches the item. This is excellent. In fact, put that in the LFG system too please.

How do they tell what is a Tank item vs a Dps item?

Well they’d either classify each item which would take ages or they have an algorithm (a previous post about exactly that type of algorithm in April). Its like they’re reading the blog.