Can a threshold be set so that Tixati automatically removes or ignores a peer or seeder that contributes to a download less than a given # of valid bits / time interval or does not contribute at all?  

I realize the general and present attitude and implementation seeks to promote sharing, not restrict sharing.  Yet, there is an advent of torrent clients that seek only to identify the IPs of sharing participants.  Their purpose is to facilitate legal action against those who infringe on copyrighted material.

Typically such clients will not upload anything or will upload faulty data, for if they should participate in the share, that would compromise the plaintiff's case -- in some way, apparently.  Setting such a threshold would be a first step to impede such clients.

If such a threshold can be set, how to do it?