P2P-Networks ? Options

[Suenert]

How did you implement P2P-networks in your game ?
In the course of creating a decker I have started to thing about how rules for them have to look, problem is my expierence with them is limited.
This is what I got:

Description

P2P are described by:

open or closed
Open: anyone can download the client and partiscipate
closed: invitation only

Quality rating
The amount and quality of software which is accessible to an user.

Reputation rating
Your standing with the network, nobodies likes a leecher.

Ratio U/D rating
The ratio which describes how much you have to up/download to change your standing.

Downloading
- first make a roll quality against availibility to determine of the programm you are looking for is to be found in the network
- second step the GM rolls quality to determine the bug factor, if you roll only ones the programm is infested with a worm (choice of the SL)
- write down the value (price inclusive street index) of the downloaded programm

Uploading
. make a quality roll against the availibility of the program you are uploading, if you fail write down the value of the programm

Reputation
At the end of every month divide the sum of the values of all downloaded programms by the sum of the values of all uploaded programms, round up.
Substract this value from the ratio for the network, and add the resulting value to your reputation.

If you reputation is zero you get booted from it, if it is a closed one.
If the network is open, the quality is capped by the reputation (bandwidth is hocked by people with an higher reputation).

Open networks should in general have a low quality value.

Suggestions, criticism ?