RSS for free users
Short, concise description of the idea
As paid users are given 10 points for RSS feeds, why not give free users 2 points (or even 1 point) to allow them to see what they could get if they paid.
Full description of the idea
Most of the free users I've spoken to have no idea what RSS feeds are or how useful they can be as "friends". Giving them access to a couple as a taster might well persuade them it was a service worth paying for (I certainly would pay for it by itself)
An ordered list of benefits
An ordered list of problems/issues involved
An organized list, or a few short paragraphs detailing suggestions for implementation