After looking at that URL, my question remains unanswered. One must assume it is not available for download, which implies programmers would need to create one from scratch -- a decidedly non-trivial task that could take months to complete.
Not a realistic answer, unless you are volunteering a team of programmers, or paying a bounty or something?
i'm a network designer, not a programmer - but it doesn't appear that complicated.
you have already tried out giving users the ability to uprate and downrate comments - so that exists in the forum software, yes? the only thing that needs to be changed there is limiting those who can downrate a comment to users who have attained 'trusted user' status, by gaining sufficient uprates from other users. anybody can uprate a comment, but only trusted users can downrate one.
and the moderators already have the ability to hide/delete comments. the change needed there is to make hiding/deleting automatic, after some pre-determined number of downrates by trusted users.
those two things are all that's needed for the community to essentially police itself - and they will.
the rest is gilding the lily: limiting the number of downrates a TU can issue in a day, or requiring a steady posting/uprate history to maintain TU status if it seems appropriate.
and then the mods can pretty much limit their attention and responses to illegal (as you point out) content, etc., by concentrating on looking at the origin posts of threads, and stolen or obscene posted material which doesn't get downrated.
i guess all i can say is - it works.
* sigh * but maybe not here. i've been trying to do some more objective reading.
perhaps the project is better served by removing everything but tech, merchant lists, and how-to's, from forum.bitcoin,org. it is, as has been noted on the SourceForge archive, pretty much a political cesspool.
it'd be nice to save it, if possible...
< shrug > ...but i'm glad it's not my call.