At no.wp there are now questions about establishing thrust for users
within small or closed groups where it is no or very little knowledge
outside the group. Such situations will occur very rarely on english, or
one of the other large wikis, yet it can occur very easily on smaller
communities. It can although happen on a wiki with a large community if
the given area of knowledge is sufficiently small.
An example is something like tetraploid salmon in fish farming
(
http://en.wikipedia.org/wiki/Fish_farming), where the english community
might be able to check if this is meaningful and parhaps also the
norwegian community, irish community and chilean community, but what
about the polish community? Will they figure out the relations? Will a
editor writing about this gain correct trust? Note that the places are
known for salmon fish farming, someone in the polish community might now
about this because there are fish farming in Poland - just not with salmon.
I believe the system in the mean will produce valuable information, but
it will not be very accurate without additional measures.
John