I like lore. I like a good paragraph or so to get the world started, then its players and GM can continue to add lore. It may have 10 pages or 60 pages or even 666 pages of lore when the RP ends, but if it's added at a comfortable pace, that's all that matters to me. I'll never join an RP that requires hours of reading up front. But if everyone's post contains a little bit of flavor, that's a good thing!