That doesn't make any sense. Quantity might make you more prominent in a unified facebook feed, but an RSS reader will show it like this:
Sam and Fuzzy (5)
Station V3 (128)
They've always displayed that way. You never see one feed mixed into another feed. This problem can't arise in RSS. There is no such incentive. Quantity is a negative thing; when I see that I've missed 128 posts, I'm just going to say "mark all as read" and forget about them. (In fact, I have 174 unread posts in Volokh Conspiracy A† right now. I will not be reading all of those.)† Volokh Conspiracy is hosted on Reason. Reason provides an official feed at http://reason.com/volokh/atom.xml . But Volokh Conspiracy also provides an independent feed at http://feeds.feedburner.com/volokh/mainfeed . Some of their posts go into one of those feeds, and the rest go into the other. I can't imagine that they do this on purpose, but it is what they do.