For me I don't even need tags for my library, just the ability to drag and drop into categories I create. If by "categories" they do tagging, then fine. But typing in tags for each game based on what tags I want to use is no better than the plodding manual process they currently have.
Yeah, I agree. Especially since a system for categorisation exists but is not implemented well enough yet. I imagine they will allow personal tags and a filter to list by those tags and arrange them in an order that is meaningful to you... or perhaps that's wishful thinking. We'll have to wait some more