When I search (in the "show threads" mode) or even ask to see the list of new posts (which looks like it's considered to be the result of a search), threads with wikis don't have the blue WIKI tag indicated even though the WIKI blue tag does appear associated with the same thread in the list of threads in a forum.

Is this the way the WIKI tag is supposed to work on FT?

I don't think this is the way it should work because if one is searching for some topic, it could save time and be very useful to know where the wikis are, so as to be able to go immediately to those threads.