Basically, Ruben already implemented a very good way to deal with troll
posts.
I agree. I believe it is better than banning or even having moderators
because it does not generate any tension. I recently wrote more about that:
https://trisquel.info/forum/3g-modems-coming-integrated-next-gen-intel-atom-real-time#comment-66173
However, I still think that the hiding system could be made a bit more
"severe": a user with a negative average (i.e., who has received more
down-votes than up-votes) would have his/her post hidden as soon as it gets
-1 (instead of -3). I know quidam coul set this policy up in minutes (no
implementation work).