I've got a cold/sore throat and when I do I drink a bunch of OJ. I don't normally drink OJ so I get small windows into it. Every time I get it I notice less and less pulp in it. Today there were tons of "NO PULP" oj out there, even tropicana 50, which is watered and filtered oj. These things are essentially natural koolaid.
I am not sure if the consumers really like and demand no pulp OJ or if it's one of those fads that are being pushed onto the consumers by the big brands. I for one prefer high pulp OJ any day, not for the fiber, but because it makes the juice taste so much better and fruitier. Without the pulp, the juice might as well be made from artificial flavors.